From: Borislav Petkov (AMD) bp@alien8.de
commit d6fd48eff7506bb866a54e40369df8899f2078a9 upstream.
No need to check it on every ioctl. And yes, this is a common SEV driver but it does only SNP-specific operations currently. This can be revisited later, when more use cases appear.
No functional changes.
Signed-off-by: Borislav Petkov (AMD) bp@alien8.de Reviewed-by: Tom Lendacky thomas.lendacky@amd.com Link: https://lore.kernel.org/r/20230307192449.24732-3-bp@alien8.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kernel/sev.c | 3 --- drivers/virt/coco/sev-guest/sev-guest.c | 3 +++ 2 files changed, 3 insertions(+), 3 deletions(-)
--- a/arch/x86/kernel/sev.c +++ b/arch/x86/kernel/sev.c @@ -2183,9 +2183,6 @@ int snp_issue_guest_request(u64 exit_cod struct ghcb *ghcb; int ret;
- if (!cc_platform_has(CC_ATTR_GUEST_SEV_SNP)) - return -ENODEV; - if (!fw_err) return -EINVAL;
--- a/drivers/virt/coco/sev-guest/sev-guest.c +++ b/drivers/virt/coco/sev-guest/sev-guest.c @@ -703,6 +703,9 @@ static int __init sev_guest_probe(struct void __iomem *mapping; int ret;
+ if (!cc_platform_has(CC_ATTR_GUEST_SEV_SNP)) + return -ENODEV; + if (!dev->platform_data) return -ENODEV;