On Mon, Mar 10, 2025 at 6:42 PM Tom Lendacky <thomas.lenda...@amd.com> wrote:
>
> On 3/10/25 05:26, Borislav Petkov wrote:
> > On Thu, Dec 19, 2024 at 11:44:00AM +0000, Ajay Kaher wrote:
> >> For VMware hypervisor, SEV-SNP enabled VM's could boot without UEFI.
> >> In this case, mpparse_find_mptable() has to be called to parse MP
> >> tables which contains boot information.
> >>
> >> Fixes: 0f4a1e80989a ("x86/sev: Skip ROM range scans and validation for
> >> SEV-SNP guests")
> >> Signed-off-by: Ajay Kaher <ajay.ka...@broadcom.com>
> >> Signed-off-by: Ye Li <ye...@broadcom.com>
> >> Tested-by: Ye Li <ye...@broadcom.com>
> >
> > That SOB chain is wrong. Ye's SOB means, he's sending the patch but that
> > doesn't look like it.
I will add CDB for Ye in v2.
> >> ---
> >> arch/x86/kernel/cpu/vmware.c | 7 +++++++
> >> 1 file changed, 7 insertions(+)
> >>
> >> diff --git a/arch/x86/kernel/cpu/vmware.c b/arch/x86/kernel/cpu/vmware.c
> >> index 00189cd..3e2594d 100644
> >> --- a/arch/x86/kernel/cpu/vmware.c
> >> +++ b/arch/x86/kernel/cpu/vmware.c
> >> @@ -26,6 +26,7 @@
> >> #include <linux/export.h>
> >> #include <linux/clocksource.h>
> >> #include <linux/cpu.h>
> >> +#include <linux/efi.h>
> >> #include <linux/reboot.h>
> >> #include <linux/static_call.h>
> >> #include <asm/div64.h>
> >> @@ -35,6 +36,8 @@
> >> #include <asm/apic.h>
> >> #include <asm/vmware.h>
> >> #include <asm/svm.h>
> >> +#include <asm/mem_encrypt.h>
> >> +#include <asm/efi.h>
> >>
> >> #undef pr_fmt
> >> #define pr_fmt(fmt) "vmware: " fmt
> >> @@ -429,6 +432,10 @@ static void __init vmware_platform_setup(void)
> >> pr_warn("Failed to get TSC freq from the hypervisor\n");
> >> }
> >>
> >> + if (sev_status & MSR_AMD64_SEV_SNP_ENABLED &&
> >
> > cpu_feature_enabled(X86_FEATURE_SEV_SNP)
>
> I think this should really be cc_platform_has(CC_ATTR_GUEST_SEV_SNP).
cc_platform_has(CC_ATTR_GUEST_SEV_SNP) works, I will make appropriate
changes in v2.
Thanks Borislav, Tom.
- Ajay
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