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[PATCH v2 7/7] KVM: selftests: Add test for RAZ/WI AArch32 ID registers

by Oliver Upton

Add a test to assert that KVM handles the AArch64 views of the AArch32 ID registers as RAZ/WI (writable only from userspace). Signed-off-by: Oliver Upton <oliver.upton(a)linux.dev> --- tools/testing/selftests/kvm/.gitignore | 1 + tools/testing/selftests/kvm/Makefile | 1 + .../kvm/aarch64/aarch64_only_id_regs.c | 135 ++++++++++++++++++ 3 files changed, 137 insertions(+) create mode 100644 tools/testing/selftests/kvm/aarch64/aarch64_only_id_regs.c diff --git a/tools/testing/selftests/kvm/.gitignore b/tools/testing/selftests/kvm/.gitignore index d625a3f83780..4331af62a982 100644 --- a/tools/testing/selftests/kvm/.gitignore +++ b/tools/testing/selftests/kvm/.gitignore @@ -1,4 +1,5 @@ # SPDX-License-Identifier: GPL-2.0-only +/aarch64/aarch64_only_id_regs /aarch64/arch_timer /aarch64/debug-exceptions /aarch64/get-reg-list diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile index 4c122f1b1737..efe155259095 100644 --- a/tools/testing/selftests/kvm/Makefile +++ b/tools/testing/selftests/kvm/Makefile @@ -144,6 +144,7 @@ TEST_GEN_PROGS_x86_64 += system_counter_offset_test # Compiled outputs used by test targets TEST_GEN_PROGS_EXTENDED_x86_64 += x86_64/nx_huge_pages_test +TEST_GEN_PROGS_aarch64 += aarch64/aarch64_only_id_regs TEST_GEN_PROGS_aarch64 += aarch64/arch_timer TEST_GEN_PROGS_aarch64 += aarch64/debug-exceptions TEST_GEN_PROGS_aarch64 += aarch64/get-reg-list diff --git a/tools/testing/selftests/kvm/aarch64/aarch64_only_id_regs.c b/tools/testing/selftests/kvm/aarch64/aarch64_only_id_regs.c new file mode 100644 index 000000000000..704a3e7524a8 --- /dev/null +++ b/tools/testing/selftests/kvm/aarch64/aarch64_only_id_regs.c @@ -0,0 +1,135 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * aarch64_only_id_regs - Test for ID register behavior on AArch64-only systems + * + * Copyright (c) 2022 Google LLC. + * + * Test that KVM handles the AArch64 views of the AArch32 ID registers as RAZ + * and WI from userspace. + */ + +#include <stdint.h> + +#include "kvm_util.h" +#include "processor.h" +#include "test_util.h" + +#define BAD_ID_REG_VAL 0x1badc0deul + +#define GUEST_ASSERT_REG_RAZ(reg) GUEST_ASSERT_EQ(read_sysreg_s(reg), 0) + +static void guest_main(void) +{ + GUEST_ASSERT_REG_RAZ(SYS_ID_PFR0_EL1); + GUEST_ASSERT_REG_RAZ(SYS_ID_PFR1_EL1); + GUEST_ASSERT_REG_RAZ(SYS_ID_DFR0_EL1); + GUEST_ASSERT_REG_RAZ(SYS_ID_MMFR0_EL1); + GUEST_ASSERT_REG_RAZ(SYS_ID_MMFR1_EL1); + GUEST_ASSERT_REG_RAZ(SYS_ID_MMFR2_EL1); + GUEST_ASSERT_REG_RAZ(SYS_ID_MMFR3_EL1); + GUEST_ASSERT_REG_RAZ(SYS_ID_ISAR0_EL1); + GUEST_ASSERT_REG_RAZ(SYS_ID_ISAR1_EL1); + GUEST_ASSERT_REG_RAZ(SYS_ID_ISAR2_EL1); + GUEST_ASSERT_REG_RAZ(SYS_ID_ISAR3_EL1); + GUEST_ASSERT_REG_RAZ(SYS_ID_ISAR4_EL1); + GUEST_ASSERT_REG_RAZ(SYS_ID_ISAR5_EL1); + GUEST_ASSERT_REG_RAZ(SYS_ID_MMFR4_EL1); + GUEST_ASSERT_REG_RAZ(SYS_ID_ISAR6_EL1); + GUEST_ASSERT_REG_RAZ(SYS_MVFR0_EL1); + GUEST_ASSERT_REG_RAZ(SYS_MVFR1_EL1); + GUEST_ASSERT_REG_RAZ(SYS_MVFR2_EL1); + GUEST_ASSERT_REG_RAZ(SYS_ID_PFR2_EL1); + GUEST_ASSERT_REG_RAZ(SYS_ID_MMFR5_EL1); + + GUEST_DONE(); +} + +static void test_guest_raz(struct kvm_vcpu *vcpu) +{ + struct ucall uc; + + vcpu_run(vcpu); + + switch (get_ucall(vcpu, &uc)) { + case UCALL_ABORT: + REPORT_GUEST_ASSERT(uc); + break; + case UCALL_DONE: + break; + default: + TEST_FAIL("Unexpected ucall: %lu", uc.cmd); + } +} + +static uint64_t reg_ids[] = { + KVM_ARM64_SYS_REG(SYS_ID_PFR0_EL1), + KVM_ARM64_SYS_REG(SYS_ID_PFR1_EL1), + KVM_ARM64_SYS_REG(SYS_ID_DFR0_EL1), + KVM_ARM64_SYS_REG(SYS_ID_MMFR0_EL1), + KVM_ARM64_SYS_REG(SYS_ID_MMFR1_EL1), + KVM_ARM64_SYS_REG(SYS_ID_MMFR2_EL1), + KVM_ARM64_SYS_REG(SYS_ID_MMFR3_EL1), + KVM_ARM64_SYS_REG(SYS_ID_ISAR0_EL1), + KVM_ARM64_SYS_REG(SYS_ID_ISAR1_EL1), + KVM_ARM64_SYS_REG(SYS_ID_ISAR2_EL1), + KVM_ARM64_SYS_REG(SYS_ID_ISAR3_EL1), + KVM_ARM64_SYS_REG(SYS_ID_ISAR4_EL1), + KVM_ARM64_SYS_REG(SYS_ID_ISAR5_EL1), + KVM_ARM64_SYS_REG(SYS_ID_MMFR4_EL1), + KVM_ARM64_SYS_REG(SYS_ID_ISAR6_EL1), + KVM_ARM64_SYS_REG(SYS_MVFR0_EL1), + KVM_ARM64_SYS_REG(SYS_MVFR1_EL1), + KVM_ARM64_SYS_REG(SYS_MVFR2_EL1), + KVM_ARM64_SYS_REG(SYS_ID_PFR2_EL1), + KVM_ARM64_SYS_REG(SYS_ID_MMFR5_EL1), +}; + +static void test_user_raz_wi(struct kvm_vcpu *vcpu) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(reg_ids); i++) { + uint64_t reg_id = reg_ids[i]; + uint64_t val; + + vcpu_get_reg(vcpu, reg_id, &val); + ASSERT_EQ(val, 0); + + /* + * Expect the ioctl to succeed with no effect on the register + * value. + */ + vcpu_set_reg(vcpu, reg_id, BAD_ID_REG_VAL); + + vcpu_get_reg(vcpu, reg_id, &val); + ASSERT_EQ(val, 0); + } +} + +static bool vcpu_aarch64_only(struct kvm_vcpu *vcpu) +{ + uint64_t val, el0; + + vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(SYS_ID_AA64PFR0_EL1), &val); + + el0 = (val & ARM64_FEATURE_MASK(ID_AA64PFR0_EL0)) >> ID_AA64PFR0_EL0_SHIFT; + return el0 == ID_AA64PFR0_ELx_64BIT_ONLY; +} + +int main(void) +{ + struct kvm_vcpu *vcpu; + struct kvm_vm *vm; + + vm = vm_create_with_one_vcpu(&vcpu, guest_main); + + TEST_REQUIRE(vcpu_aarch64_only(vcpu)); + + ucall_init(vm, NULL); + + test_user_raz_wi(vcpu); + test_guest_raz(vcpu); + + ucall_uninit(vm); + kvm_vm_free(vm); +} -- 2.37.2.789.g6183377224-goog

3 years, 2 months

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[PATCH 0/3] selftests/Make: Recursively build TARGETS list

by Dmitry Safonov

From [1]: > Please look into a wayto invoke all of them instead of adding individual > net/* to the main Makefile. This list seems to be growing. :) I might have misunderstood what was suggested... Here is an attempt to let sub-selftests define their own $(TARGETS) directories. [1]: https://lore.kernel.org/all/aa0143bc-b0d1-69fb-c117-1e7241f0ad89@linuxfound… Cc: Shuah Khan <shuah(a)kernel.org> Cc: Dmitry Safonov <0x7f454c46(a)gmail.com> Cc: linux-kernel(a)vger.kernel.org Cc: linux-kselftest(a)vger.kernel.org Dmitry Safonov (3): selftests/Make: Recursively build TARGETS list selftests/.gitignore: Add vfork_exec selftests/.gitignore: Add io_uring_zerocopy_tx tools/testing/selftests/Makefile | 71 ++++---------------- tools/testing/selftests/drivers/Makefile | 7 ++ tools/testing/selftests/filesystems/Makefile | 4 ++ tools/testing/selftests/lib.mk | 59 +++++++++++++++- tools/testing/selftests/net/.gitignore | 1 + tools/testing/selftests/net/Makefile | 4 ++ tools/testing/selftests/timens/.gitignore | 1 + 7 files changed, 87 insertions(+), 60 deletions(-) create mode 100644 tools/testing/selftests/drivers/Makefile base-commit: 42e66b1cc3a070671001f8a1e933a80818a192bf -- 2.37.2

3 years, 2 months

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Re: [PATCH -next v2 3/5] selftests/cpu-hotplug: Delete fault injection related code

by zhaogongyi

Hi shuah, I am so sorry! There are some mistaks in the patch that did not delete the config file, please skip the patches of v2 version. And I have resubmit the patches with new version, please see: https://patchwork.kernel.org/project/linux-kselftest/patch/20220905133615.1… Thanks for your review! Kind regards, Gongyi > > Delete fault injection related code since the module has been deleted. > > Signed-off-by: Zhao Gongyi <zhaogongyi(a)huawei.com> > --- > .../selftests/cpu-hotplug/cpu-on-off-test.sh | 87 ++----------------- > 1 file changed, 6 insertions(+), 81 deletions(-) > > diff --git a/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh > b/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh > index bd2e791fe887..184156763ccb 100755 > --- a/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh > +++ b/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh > @@ -116,10 +116,10 @@ online_cpu_expect_fail() > > if online_cpu $cpu 2> /dev/null; then > echo $FUNCNAME $cpu: unexpected success >&2 > - exit 1 > + retval=1 > elif ! cpu_is_offline $cpu; then > echo $FUNCNAME $cpu: unexpected online >&2 > - exit 1 > + retval=1 > fi > } > > @@ -142,16 +142,14 @@ offline_cpu_expect_fail() > > if offline_cpu $cpu 2> /dev/null; then > echo $FUNCNAME $cpu: unexpected success >&2 > - exit 1 > + retval=1 > elif ! cpu_is_online $cpu; then > echo $FUNCNAME $cpu: unexpected offline >&2 > - exit 1 > + retval=1 > fi > } > > -error=-12 > allcpus=0 > -priority=0 > online_cpus=0 > online_max=0 > offline_cpus=0 > @@ -159,31 +157,20 @@ offline_max=0 > present_cpus=0 > present_max=0 > > -while getopts e:ahp: opt; do > +while getopts ah opt; do > case $opt in > - e) > - error=$OPTARG > - ;; > a) > allcpus=1 > ;; > h) > - echo "Usage $0 [ -a ] [ -e errno ] [ -p notifier-priority ]" > + echo "Usage $0 [ -a ]" > echo -e "\t default offline one cpu" > echo -e "\t run with -a option to offline all cpus" > exit > ;; > - p) > - priority=$OPTARG > - ;; > esac > done > > -if ! [ "$error" -ge -4095 -a "$error" -lt 0 ]; then > - echo "error code must be -4095 <= errno < 0" >&2 > - exit 1 > -fi > - > prerequisite > > # > @@ -231,66 +218,4 @@ for cpu in `hotplaggable_offline_cpus`; do > online_cpu_expect_success $cpu > done > > -# > -# Test with cpu notifier error injection -# > - > -DEBUGFS=`mount -t debugfs | head -1 | awk '{ print $3 }'` > -NOTIFIER_ERR_INJECT_DIR=$DEBUGFS/notifier-error-inject/cpu > - > -prerequisite_extra() > -{ > - msg="skip extra tests:" > - > - /sbin/modprobe -q -r cpu-notifier-error-inject > - /sbin/modprobe -q cpu-notifier-error-inject priority=$priority > - > - if [ ! -d "$DEBUGFS" ]; then > - echo $msg debugfs is not mounted >&2 > - exit $ksft_skip > - fi > - > - if [ ! -d $NOTIFIER_ERR_INJECT_DIR ]; then > - echo $msg cpu-notifier-error-inject module is not available >&2 > - exit $ksft_skip > - fi > -} > - > -prerequisite_extra > - > -# > -# Offline all hot-pluggable CPUs > -# > -echo 0 > > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_DOWN_PREPARE/error > -for cpu in `hotpluggable_online_cpus`; do > - offline_cpu_expect_success $cpu > -done > - > -# > -# Test CPU hot-add error handling (offline => online) -# -echo $error > > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_UP_PREPARE/error > -for cpu in `hotplaggable_offline_cpus`; do > - online_cpu_expect_fail $cpu > -done > - > -# > -# Online all hot-pluggable CPUs > -# > -echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_UP_PREPARE/error > -for cpu in `hotplaggable_offline_cpus`; do > - online_cpu_expect_success $cpu > -done > - > -# > -# Test CPU hot-remove error handling (online => offline) -# -echo $error > > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_DOWN_PREPARE/error > -for cpu in `hotpluggable_online_cpus`; do > - offline_cpu_expect_fail $cpu > -done > - > -echo 0 > > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_DOWN_PREPARE/error > -/sbin/modprobe -q -r cpu-notifier-error-inject > - > exit $retval > -- > 2.17.1

3 years, 2 months

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[PATCH -next v2 0/5] Optimize and bugfix for cpu-on-off-test.sh

by Zhao Gongyi

1. Correct log info 2. Add checking of invalid options 3. Replace exit with return to make the test exit gracefully 4. Delete fault injection related code 5. Reserve one cpu online when the test offline all cpus Changes in v2: - Update change log of patch 2 - Update exiting value to avoid incorrect report for patch 2 - Keep online_cpu_expect_fail() and offline_cpu_expect_fail() for patch 3 Zhao Gongyi (5): selftests/cpu-hotplug: Correct log info selftests/cpu-hotplug: Use return instead of exit selftests/cpu-hotplug: Delete fault injection related code selftests/cpu-hotplug: Reserve one cpu online at least selftests/cpu-hotplug: Add log info when test success tools/testing/selftests/cpu-hotplug/Makefile | 2 +- .../selftests/cpu-hotplug/cpu-on-off-test.sh | 140 +++++------------- 2 files changed, 37 insertions(+), 105 deletions(-) -- 2.17.1

3 years, 2 months

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[PATCH net v2 0/3] Unsync addresses from ports when stopping aggregated devices

by Benjamin Poirier

This series fixes similar problems in the bonding and team drivers. Because of missing dev_{uc,mc}_unsync() calls, addresses added to underlying devices may be leftover after the aggregated device is deleted. Add the missing calls and a few related tests. v2: * fix selftest installation, see patch 3 Benjamin Poirier (3): net: bonding: Unsync device addresses on ndo_stop net: team: Unsync device addresses on ndo_stop net: Add tests for bonding and team address list management MAINTAINERS | 1 + drivers/net/bonding/bond_main.c | 31 ++++--- drivers/net/team/team.c | 8 ++ tools/testing/selftests/Makefile | 1 + .../selftests/drivers/net/bonding/Makefile | 5 +- .../selftests/drivers/net/bonding/config | 1 + .../drivers/net/bonding/dev_addr_lists.sh | 89 +++++++++++++++++++ .../selftests/drivers/net/bonding/lag_lib.sh | 63 +++++++++++++ .../selftests/drivers/net/team/Makefile | 6 ++ .../testing/selftests/drivers/net/team/config | 3 + .../drivers/net/team/dev_addr_lists.sh | 51 +++++++++++ 11 files changed, 248 insertions(+), 11 deletions(-) create mode 100755 tools/testing/selftests/drivers/net/bonding/dev_addr_lists.sh create mode 100644 tools/testing/selftests/drivers/net/bonding/lag_lib.sh create mode 100644 tools/testing/selftests/drivers/net/team/Makefile create mode 100644 tools/testing/selftests/drivers/net/team/config create mode 100755 tools/testing/selftests/drivers/net/team/dev_addr_lists.sh -- 2.37.2

3 years, 2 months

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[PATCH 5/5] selftests/sgx: Add SGX selftest augment_via_eaccept_long

by Jarkko Sakkinen

From: Vijay Dhanraj <vijay.dhanraj(a)intel.com> Add a new test case which is same as augment_via_eaccept but adds a larger number of EPC pages to stress test EAUG via EACCEPT. Signed-off-by: Vijay Dhanraj <vijay.dhanraj(a)intel.com> Signed-off-by: Jarkko Sakkinen <jarkko(a)kernel.org> --- v7: - Contains now only the test case. Support for dynamic heap is prepared in prepending patches. v6: - Address Reinette's feedback: https://lore.kernel.org/linux-sgx/Yw6%2FiTzSdSw%2FY%2FVO@kernel.org/ v5: - Add the klog dump and sysctl option to the commit message. v4: - Explain expectations for dirty_page_list in the function header, instead of an inline comment. - Improve commit message to explain the conditions better. - Return the number of pages left dirty to ksgxd() and print warning after the 2nd call, if there are any. v3: - Remove WARN_ON(). - Tuned comments and the commit message a bit. v2: - Replaced WARN_ON() with optional pr_info() inside __sgx_sanitize_pages(). - Rewrote the commit message. - Added the fixes tag. --- tools/testing/selftests/sgx/main.c | 112 ++++++++++++++++++++++++++++- 1 file changed, 111 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/sgx/main.c b/tools/testing/selftests/sgx/main.c index 4feffe7cd8fb..48976bb7bd79 100644 --- a/tools/testing/selftests/sgx/main.c +++ b/tools/testing/selftests/sgx/main.c @@ -23,8 +23,15 @@ static const size_t ENCL_HEAP_SIZE_DEFAULT = PAGE_SIZE; static const size_t ENCL_DYNAMIC_SIZE_DEFAULT = PAGE_SIZE; +/* + * The size was chosen based on a bug report: + * Message-ID: <DM8PR11MB55912A7F47A84EC9913A6352F6999(a)DM8PR11MB5591.namprd11.prod.outlook.com> + */ +static const size_t ENCL_DYNAMIC_SIZE_LONG = 8L * 1024L * 1024L * 1024L; +static const unsigned long TIMEOUT_DEFAULT = 900; static const uint64_t MAGIC = 0x1122334455667788ULL; static const uint64_t MAGIC2 = 0x8877665544332211ULL; + vdso_sgx_enter_enclave_t vdso_sgx_enter_enclave; /* @@ -388,7 +395,7 @@ TEST_F(enclave, unclobbered_vdso_oversubscribed) EXPECT_EQ(self->run.user_data, 0); } -TEST_F_TIMEOUT(enclave, unclobbered_vdso_oversubscribed_remove, 900) +TEST_F_TIMEOUT(enclave, unclobbered_vdso_oversubscribed_remove, TIMEOUT_DEFAULT) { struct sgx_enclave_remove_pages remove_ioc; struct sgx_enclave_modify_types modt_ioc; @@ -1248,6 +1255,109 @@ TEST_F(enclave, augment_via_eaccept) munmap(addr, PAGE_SIZE); } +/* + * Test for the addition of large number of pages to an initialized enclave via + * a pre-emptive run of EACCEPT on every page to be added. + */ +TEST_F_TIMEOUT(enclave, augment_via_eaccept_long, TIMEOUT_DEFAULT) +{ + struct encl_op_get_from_addr get_addr_op; + struct encl_op_put_to_addr put_addr_op; + struct encl_op_eaccept eaccept_op; + size_t total_size = 0; + unsigned long i; + void *addr; + + if (!sgx2_supported()) + SKIP(return, "SGX2 not supported"); + + ASSERT_TRUE(setup_test_encl_dynamic(ENCL_HEAP_SIZE_DEFAULT, + ENCL_DYNAMIC_SIZE_LONG, + &self->encl, _metadata)); + + memset(&self->run, 0, sizeof(self->run)); + self->run.tcs = self->encl.encl_base; + + for (i = 0; i < self->encl.nr_segments; i++) { + struct encl_segment *seg = &self->encl.segment_tbl[i]; + + total_size += seg->size; + } + + /* + * mmap() every page at end of existing enclave to be used for + * EDMM. + */ + addr = mmap((void *)self->encl.encl_base + total_size, ENCL_DYNAMIC_SIZE_LONG, + PROT_READ | PROT_WRITE | PROT_EXEC, MAP_SHARED | MAP_FIXED, + self->encl.fd, 0); + EXPECT_NE(addr, MAP_FAILED); + + self->run.exception_vector = 0; + self->run.exception_error_code = 0; + self->run.exception_addr = 0; + + /* + * Run EACCEPT on every page to trigger the #PF->EAUG->EACCEPT(again + * without a #PF). All should be transparent to userspace. + */ + eaccept_op.flags = SGX_SECINFO_R | SGX_SECINFO_W | SGX_SECINFO_REG | SGX_SECINFO_PENDING; + eaccept_op.ret = 0; + eaccept_op.header.type = ENCL_OP_EACCEPT; + + for (i = 0; i < ENCL_DYNAMIC_SIZE_LONG; i += 4096) { + eaccept_op.epc_addr = (uint64_t)(addr + i); + + EXPECT_EQ(ENCL_CALL(&eaccept_op, &self->run, true), 0); + if (self->run.exception_vector == 14 && + self->run.exception_error_code == 4 && + self->run.exception_addr == self->encl.encl_base) { + munmap(addr, ENCL_DYNAMIC_SIZE_LONG); + SKIP(return, "Kernel does not support adding pages to initialized enclave"); + } + + EXPECT_EQ(self->run.exception_vector, 0); + EXPECT_EQ(self->run.exception_error_code, 0); + EXPECT_EQ(self->run.exception_addr, 0); + ASSERT_EQ(eaccept_op.ret, 0); + ASSERT_EQ(self->run.function, EEXIT); + } + + /* + * Pool of pages were successfully added to enclave. Perform sanity + * check on first page of the pool only to ensure data can be written + * to and read from a dynamically added enclave page. + */ + put_addr_op.value = MAGIC; + put_addr_op.addr = (unsigned long)addr; + put_addr_op.header.type = ENCL_OP_PUT_TO_ADDRESS; + + EXPECT_EQ(ENCL_CALL(&put_addr_op, &self->run, true), 0); + + EXPECT_EEXIT(&self->run); + EXPECT_EQ(self->run.exception_vector, 0); + EXPECT_EQ(self->run.exception_error_code, 0); + EXPECT_EQ(self->run.exception_addr, 0); + + /* + * Read memory from newly added page that was just written to, + * confirming that data previously written (MAGIC) is present. + */ + get_addr_op.value = 0; + get_addr_op.addr = (unsigned long)addr; + get_addr_op.header.type = ENCL_OP_GET_FROM_ADDRESS; + + EXPECT_EQ(ENCL_CALL(&get_addr_op, &self->run, true), 0); + + EXPECT_EQ(get_addr_op.value, MAGIC); + EXPECT_EEXIT(&self->run); + EXPECT_EQ(self->run.exception_vector, 0); + EXPECT_EQ(self->run.exception_error_code, 0); + EXPECT_EQ(self->run.exception_addr, 0); + + munmap(addr, ENCL_DYNAMIC_SIZE_LONG); +} + /* * SGX2 page type modification test in two phases: * Phase 1: -- 2.37.2

3 years, 2 months

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[PATCH 4/5] selftests/sgx: Include the dynamic heap size to the ELRANGE calculation

by Jarkko Sakkinen

When calculating ELRANGE, i.e. the address range defined for an enclave, and represented by encl->encl_size, also dynamic memory should be taken into account. Implement setup_test_encl_dynamic() with dynamic_size parameter for the dynamic heap size, and use it in 'augment_via_eaccept' and 'augment' tests. Signed-off-by: Jarkko Sakkinen <jarkko(a)kernel.org> --- tools/testing/selftests/sgx/load.c | 5 +++-- tools/testing/selftests/sgx/main.c | 24 +++++++++++++++++------- tools/testing/selftests/sgx/main.h | 3 ++- 3 files changed, 22 insertions(+), 10 deletions(-) diff --git a/tools/testing/selftests/sgx/load.c b/tools/testing/selftests/sgx/load.c index 3b4e2422fb09..963a5c6bbbdc 100644 --- a/tools/testing/selftests/sgx/load.c +++ b/tools/testing/selftests/sgx/load.c @@ -171,7 +171,8 @@ uint64_t encl_get_entry(struct encl *encl, const char *symbol) return 0; } -bool encl_load(const char *path, struct encl *encl, unsigned long heap_size) +bool encl_load(const char *path, struct encl *encl, unsigned long heap_size, + unsigned long dynamic_size) { const char device_path[] = "/dev/sgx_enclave"; unsigned long contents_size; @@ -299,7 +300,7 @@ bool encl_load(const char *path, struct encl *encl, unsigned long heap_size) if (seg->src == MAP_FAILED) goto err; - contents_size = encl->segment_tbl[j].offset + encl->segment_tbl[j].size; + contents_size = encl->segment_tbl[j].offset + encl->segment_tbl[j].size + dynamic_size; for (encl->encl_size = 4096; encl->encl_size < contents_size; ) encl->encl_size <<= 1; diff --git a/tools/testing/selftests/sgx/main.c b/tools/testing/selftests/sgx/main.c index a1850e139c99..4feffe7cd8fb 100644 --- a/tools/testing/selftests/sgx/main.c +++ b/tools/testing/selftests/sgx/main.c @@ -22,6 +22,7 @@ #include "main.h" static const size_t ENCL_HEAP_SIZE_DEFAULT = PAGE_SIZE; +static const size_t ENCL_DYNAMIC_SIZE_DEFAULT = PAGE_SIZE; static const uint64_t MAGIC = 0x1122334455667788ULL; static const uint64_t MAGIC2 = 0x8877665544332211ULL; vdso_sgx_enter_enclave_t vdso_sgx_enter_enclave; @@ -173,8 +174,8 @@ FIXTURE(enclave) { struct sgx_enclave_run run; }; -static bool setup_test_encl(unsigned long heap_size, struct encl *encl, - struct __test_metadata *_metadata) +static bool setup_test_encl_dynamic(unsigned long heap_size, unsigned long dynamic_size, + struct encl *encl, struct __test_metadata *_metadata) { Elf64_Sym *sgx_enter_enclave_sym = NULL; struct vdso_symtab symtab; @@ -184,7 +185,7 @@ static bool setup_test_encl(unsigned long heap_size, struct encl *encl, unsigned int i; void *addr; - if (!encl_load("test_encl.elf", encl, heap_size)) { + if (!encl_load("test_encl.elf", encl, heap_size, dynamic_size)) { encl_delete(encl); TH_LOG("Failed to load the test enclave."); return false; @@ -251,6 +252,12 @@ static bool setup_test_encl(unsigned long heap_size, struct encl *encl, return false; } +static bool setup_test_encl(unsigned long heap_size, struct encl *encl, + struct __test_metadata *_metadata) +{ + return setup_test_encl_dynamic(heap_size, 0, encl, _metadata); +} + FIXTURE_SETUP(enclave) { } @@ -1013,7 +1020,9 @@ TEST_F(enclave, augment) if (!sgx2_supported()) SKIP(return, "SGX2 not supported"); - ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata)); + ASSERT_TRUE(setup_test_encl_dynamic(ENCL_HEAP_SIZE_DEFAULT, + ENCL_DYNAMIC_SIZE_DEFAULT, + &self->encl, _metadata)); memset(&self->run, 0, sizeof(self->run)); self->run.tcs = self->encl.encl_base; @@ -1143,7 +1152,9 @@ TEST_F(enclave, augment_via_eaccept) if (!sgx2_supported()) SKIP(return, "SGX2 not supported"); - ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata)); + ASSERT_TRUE(setup_test_encl_dynamic(ENCL_HEAP_SIZE_DEFAULT, + ENCL_DYNAMIC_SIZE_DEFAULT, + &self->encl, _metadata)); memset(&self->run, 0, sizeof(self->run)); self->run.tcs = self->encl.encl_base; @@ -1264,8 +1275,7 @@ TEST_F(enclave, tcs_create) int errno_save; int ret, i; - ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, - _metadata)); + ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata)); memset(&self->run, 0, sizeof(self->run)); self->run.tcs = self->encl.encl_base; diff --git a/tools/testing/selftests/sgx/main.h b/tools/testing/selftests/sgx/main.h index 9c1bc0d9b43c..8f77ce56ad09 100644 --- a/tools/testing/selftests/sgx/main.h +++ b/tools/testing/selftests/sgx/main.h @@ -32,7 +32,8 @@ extern unsigned char sign_key[]; extern unsigned char sign_key_end[]; void encl_delete(struct encl *ctx); -bool encl_load(const char *path, struct encl *encl, unsigned long heap_size); +bool encl_load(const char *path, struct encl *encl, unsigned long heap_size, + unsigned long dynamic_size); bool encl_measure(struct encl *encl); bool encl_build(struct encl *encl); uint64_t encl_get_entry(struct encl *encl, const char *symbol); -- 2.37.2

3 years, 2 months

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[PATCH 3/5] selftests/sgx: Use encl->encl_size in sigstruct.c

by Jarkko Sakkinen

The final enclave address range (referred as ELRANGE in Intel SDM) calculation is a reminiscent of signing tool being a separate command-line utility, and sigstruct being produced during the compilation. Given that nowadays the sigstruct is calculated on-fly, use the readily calculated encl->encl_size instead, in order to remove duplicate code. Signed-off-by: Jarkko Sakkinen <jarkko(a)kernel.org> --- tools/testing/selftests/sgx/load.c | 5 +++-- tools/testing/selftests/sgx/main.h | 1 - tools/testing/selftests/sgx/sigstruct.c | 8 ++------ 3 files changed, 5 insertions(+), 9 deletions(-) diff --git a/tools/testing/selftests/sgx/load.c b/tools/testing/selftests/sgx/load.c index 94bdeac1cf04..3b4e2422fb09 100644 --- a/tools/testing/selftests/sgx/load.c +++ b/tools/testing/selftests/sgx/load.c @@ -174,6 +174,7 @@ uint64_t encl_get_entry(struct encl *encl, const char *symbol) bool encl_load(const char *path, struct encl *encl, unsigned long heap_size) { const char device_path[] = "/dev/sgx_enclave"; + unsigned long contents_size; struct encl_segment *seg; Elf64_Phdr *phdr_tbl; off_t src_offset; @@ -298,9 +299,9 @@ bool encl_load(const char *path, struct encl *encl, unsigned long heap_size) if (seg->src == MAP_FAILED) goto err; - encl->src_size = encl->segment_tbl[j].offset + encl->segment_tbl[j].size; + contents_size = encl->segment_tbl[j].offset + encl->segment_tbl[j].size; - for (encl->encl_size = 4096; encl->encl_size < encl->src_size; ) + for (encl->encl_size = 4096; encl->encl_size < contents_size; ) encl->encl_size <<= 1; return true; diff --git a/tools/testing/selftests/sgx/main.h b/tools/testing/selftests/sgx/main.h index 82b33f8db048..9c1bc0d9b43c 100644 --- a/tools/testing/selftests/sgx/main.h +++ b/tools/testing/selftests/sgx/main.h @@ -20,7 +20,6 @@ struct encl { void *bin; off_t bin_size; void *src; - size_t src_size; size_t encl_size; off_t encl_base; unsigned int nr_segments; diff --git a/tools/testing/selftests/sgx/sigstruct.c b/tools/testing/selftests/sgx/sigstruct.c index a07896a46364..9a40c7966eda 100644 --- a/tools/testing/selftests/sgx/sigstruct.c +++ b/tools/testing/selftests/sgx/sigstruct.c @@ -218,13 +218,9 @@ struct mrecreate { } __attribute__((__packed__)); -static bool mrenclave_ecreate(EVP_MD_CTX *ctx, uint64_t blob_size) +static bool mrenclave_ecreate(EVP_MD_CTX *ctx, uint64_t encl_size) { struct mrecreate mrecreate; - uint64_t encl_size; - - for (encl_size = 0x1000; encl_size < blob_size; ) - encl_size <<= 1; memset(&mrecreate, 0, sizeof(mrecreate)); mrecreate.tag = MRECREATE; @@ -349,7 +345,7 @@ bool encl_measure(struct encl *encl) if (!ctx) goto err; - if (!mrenclave_ecreate(ctx, encl->src_size)) + if (!mrenclave_ecreate(ctx, encl->encl_size)) goto err; for (i = 0; i < encl->nr_segments; i++) { -- 2.37.2

3 years, 2 months

1
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[PATCH 2/5] selftests/sgx: Move ENCL_HEAP_SIZE_DEFAULT to main.c

by Jarkko Sakkinen

Move ENCL_HEAP_SIZE_DEFAULT to main.c because all the other constants are also there, and it is only used locally there. Signed-off-by: Jarkko Sakkinen <jarkko(a)kernel.org> --- tools/testing/selftests/sgx/main.c | 1 + tools/testing/selftests/sgx/main.h | 2 -- 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/tools/testing/selftests/sgx/main.c b/tools/testing/selftests/sgx/main.c index 59cca806eda1..a1850e139c99 100644 --- a/tools/testing/selftests/sgx/main.c +++ b/tools/testing/selftests/sgx/main.c @@ -21,6 +21,7 @@ #include "../kselftest_harness.h" #include "main.h" +static const size_t ENCL_HEAP_SIZE_DEFAULT = PAGE_SIZE; static const uint64_t MAGIC = 0x1122334455667788ULL; static const uint64_t MAGIC2 = 0x8877665544332211ULL; vdso_sgx_enter_enclave_t vdso_sgx_enter_enclave; diff --git a/tools/testing/selftests/sgx/main.h b/tools/testing/selftests/sgx/main.h index fc585be97e2f..82b33f8db048 100644 --- a/tools/testing/selftests/sgx/main.h +++ b/tools/testing/selftests/sgx/main.h @@ -6,8 +6,6 @@ #ifndef MAIN_H #define MAIN_H -#define ENCL_HEAP_SIZE_DEFAULT 4096 - struct encl_segment { void *src; off_t offset; -- 2.37.2

3 years, 2 months

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[PATCH 1/5] selftests/sgx: Retry the ioctl()'s returned with EAGAIN

by Jarkko Sakkinen

From: Haitao Huang <haitao.huang(a)linux.intel.com> For EMODT and EREMOVE ioctl()'s with a large range, kernel may not finish in one shot and return EAGAIN error code and count of bytes of EPC pages on that operations are finished successfully. Change the unclobbered_vdso_oversubscribed_remove test to rerun the ioctl()'s in a loop, updating offset and length using the byte count returned in each iteration. Fixes: 6507cce561b4 ("selftests/sgx: Page removal stress test") Signed-off-by: Haitao Huang <haitao.huang(a)linux.intel.com> Tested-by: Jarkko Sakkinen <jarkko(a)kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko(a)kernel.org> --- v3: * Added a fixes tag. The bug is in v6.0 patches. * Added my tested-by (the bug reproduced in my NUC often). v2: * Changed branching in EAGAIN condition so that else branch is not required. * Addressed Reinette's feedback: --- tools/testing/selftests/sgx/main.c | 42 ++++++++++++++++++++++++------ 1 file changed, 34 insertions(+), 8 deletions(-) diff --git a/tools/testing/selftests/sgx/main.c b/tools/testing/selftests/sgx/main.c index 9820b3809c69..59cca806eda1 100644 --- a/tools/testing/selftests/sgx/main.c +++ b/tools/testing/selftests/sgx/main.c @@ -390,6 +390,7 @@ TEST_F_TIMEOUT(enclave, unclobbered_vdso_oversubscribed_remove, 900) struct encl_segment *heap; unsigned long total_mem; int ret, errno_save; + unsigned long count; unsigned long addr; unsigned long i; @@ -453,16 +454,30 @@ TEST_F_TIMEOUT(enclave, unclobbered_vdso_oversubscribed_remove, 900) modt_ioc.offset = heap->offset; modt_ioc.length = heap->size; modt_ioc.page_type = SGX_PAGE_TYPE_TRIM; - + count = 0; TH_LOG("Changing type of %zd bytes to trimmed may take a while ...", heap->size); - ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_MODIFY_TYPES, &modt_ioc); - errno_save = ret == -1 ? errno : 0; + do { + ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_MODIFY_TYPES, &modt_ioc); + + errno_save = ret == -1 ? errno : 0; + if (errno_save != EAGAIN) + break; + + EXPECT_EQ(modt_ioc.result, 0); + + count += modt_ioc.count; + modt_ioc.offset += modt_ioc.count; + modt_ioc.length -= modt_ioc.count; + modt_ioc.result = 0; + modt_ioc.count = 0; + } while (modt_ioc.length != 0); EXPECT_EQ(ret, 0); EXPECT_EQ(errno_save, 0); EXPECT_EQ(modt_ioc.result, 0); - EXPECT_EQ(modt_ioc.count, heap->size); + count += modt_ioc.count; + EXPECT_EQ(count, heap->size); /* EACCEPT all removed pages. */ addr = self->encl.encl_base + heap->offset; @@ -490,15 +505,26 @@ TEST_F_TIMEOUT(enclave, unclobbered_vdso_oversubscribed_remove, 900) remove_ioc.offset = heap->offset; remove_ioc.length = heap->size; - + count = 0; TH_LOG("Removing %zd bytes from enclave may take a while ...", heap->size); - ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_REMOVE_PAGES, &remove_ioc); - errno_save = ret == -1 ? errno : 0; + do { + ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_REMOVE_PAGES, &remove_ioc); + + errno_save = ret == -1 ? errno : 0; + if (errno_save != EAGAIN) + break; + + count += remove_ioc.count; + remove_ioc.offset += remove_ioc.count; + remove_ioc.length -= remove_ioc.count; + remove_ioc.count = 0; + } while (remove_ioc.length != 0); EXPECT_EQ(ret, 0); EXPECT_EQ(errno_save, 0); - EXPECT_EQ(remove_ioc.count, heap->size); + count += remove_ioc.count; + EXPECT_EQ(count, heap->size); } TEST_F(enclave, clobbered_vdso) -- 2.37.2

3 years, 2 months

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