3.2.101-rc1 review patch. If anyone has any objections, please let me know.
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From: Avi Kivity avi@redhat.com
commit 7454766f7bead388251aedee35a478356a7f4e72 upstream.
Use macros for bitness-insensitive register names, instead of rolling our own.
Signed-off-by: Avi Kivity avi@redhat.com Signed-off-by: Marcelo Tosatti mtosatti@redhat.com Signed-off-by: Ben Hutchings ben@decadent.org.uk --- arch/x86/kvm/svm.c | 46 ++++++++++++++++++++-------------------------- 1 file changed, 20 insertions(+), 26 deletions(-)
--- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -3679,12 +3679,6 @@ static void svm_cancel_injection(struct svm_complete_interrupts(svm); }
-#ifdef CONFIG_X86_64 -#define R "r" -#else -#define R "e" -#endif - static void svm_vcpu_run(struct kvm_vcpu *vcpu) { struct vcpu_svm *svm = to_svm(vcpu); @@ -3711,13 +3705,13 @@ static void svm_vcpu_run(struct kvm_vcpu local_irq_enable();
asm volatile ( - "push %%"R"bp; \n\t" - "mov %c[rbx](%[svm]), %%"R"bx \n\t" - "mov %c[rcx](%[svm]), %%"R"cx \n\t" - "mov %c[rdx](%[svm]), %%"R"dx \n\t" - "mov %c[rsi](%[svm]), %%"R"si \n\t" - "mov %c[rdi](%[svm]), %%"R"di \n\t" - "mov %c[rbp](%[svm]), %%"R"bp \n\t" + "push %%" _ASM_BP "; \n\t" + "mov %c[rbx](%[svm]), %%" _ASM_BX " \n\t" + "mov %c[rcx](%[svm]), %%" _ASM_CX " \n\t" + "mov %c[rdx](%[svm]), %%" _ASM_DX " \n\t" + "mov %c[rsi](%[svm]), %%" _ASM_SI " \n\t" + "mov %c[rdi](%[svm]), %%" _ASM_DI " \n\t" + "mov %c[rbp](%[svm]), %%" _ASM_BP " \n\t" #ifdef CONFIG_X86_64 "mov %c[r8](%[svm]), %%r8 \n\t" "mov %c[r9](%[svm]), %%r9 \n\t" @@ -3730,20 +3724,20 @@ static void svm_vcpu_run(struct kvm_vcpu #endif
/* Enter guest mode */ - "push %%"R"ax \n\t" - "mov %c[vmcb](%[svm]), %%"R"ax \n\t" + "push %%" _ASM_AX " \n\t" + "mov %c[vmcb](%[svm]), %%" _ASM_AX " \n\t" __ex(SVM_VMLOAD) "\n\t" __ex(SVM_VMRUN) "\n\t" __ex(SVM_VMSAVE) "\n\t" - "pop %%"R"ax \n\t" + "pop %%" _ASM_AX " \n\t"
/* Save guest registers, load host registers */ - "mov %%"R"bx, %c[rbx](%[svm]) \n\t" - "mov %%"R"cx, %c[rcx](%[svm]) \n\t" - "mov %%"R"dx, %c[rdx](%[svm]) \n\t" - "mov %%"R"si, %c[rsi](%[svm]) \n\t" - "mov %%"R"di, %c[rdi](%[svm]) \n\t" - "mov %%"R"bp, %c[rbp](%[svm]) \n\t" + "mov %%" _ASM_BX ", %c[rbx](%[svm]) \n\t" + "mov %%" _ASM_CX ", %c[rcx](%[svm]) \n\t" + "mov %%" _ASM_DX ", %c[rdx](%[svm]) \n\t" + "mov %%" _ASM_SI ", %c[rsi](%[svm]) \n\t" + "mov %%" _ASM_DI ", %c[rdi](%[svm]) \n\t" + "mov %%" _ASM_BP ", %c[rbp](%[svm]) \n\t" #ifdef CONFIG_X86_64 "mov %%r8, %c[r8](%[svm]) \n\t" "mov %%r9, %c[r9](%[svm]) \n\t" @@ -3754,7 +3748,7 @@ static void svm_vcpu_run(struct kvm_vcpu "mov %%r14, %c[r14](%[svm]) \n\t" "mov %%r15, %c[r15](%[svm]) \n\t" #endif - "pop %%"R"bp" + "pop %%" _ASM_BP : : [svm]"a"(svm), [vmcb]"i"(offsetof(struct vcpu_svm, vmcb_pa)), @@ -3775,9 +3769,11 @@ static void svm_vcpu_run(struct kvm_vcpu [r15]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R15])) #endif : "cc", "memory" - , R"bx", R"cx", R"dx", R"si", R"di" #ifdef CONFIG_X86_64 + , "rbx", "rcx", "rdx", "rsi", "rdi" , "r8", "r9", "r10", "r11" , "r12", "r13", "r14", "r15" +#else + , "ebx", "ecx", "edx", "esi", "edi" #endif );
@@ -3837,8 +3833,6 @@ static void svm_vcpu_run(struct kvm_vcpu mark_all_clean(svm->vmcb); }
-#undef R - static void svm_set_cr3(struct kvm_vcpu *vcpu, unsigned long root) { struct vcpu_svm *svm = to_svm(vcpu);