On Sat, Jan 21, 2023 at 09:45:59PM -0500, Tianyu Lan wrote: > From: Tianyu Lan <tiala@xxxxxxxxxxxxx> > > SEV-SNP enlightened guest doesn't support legacy rtc. Set > legacy.rtc, x86_platform.set_wallclock and get_wallclock to > 0 or noop(). Make get/set_rtc_noop() to be public and reuse > them in the ms_hyperv_init_platform(). > > Signed-off-by: Tianyu Lan <tiala@xxxxxxxxxxxxx> > --- > arch/x86/include/asm/mshyperv.h | 7 ++++++- > arch/x86/include/asm/x86_init.h | 2 ++ > arch/x86/kernel/cpu/mshyperv.c | 3 +++ > arch/x86/kernel/x86_init.c | 4 ++-- > 4 files changed, 13 insertions(+), 3 deletions(-) > > diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h > index 1a4af0a4f29a..7266d71d30d6 100644 > --- a/arch/x86/include/asm/mshyperv.h > +++ b/arch/x86/include/asm/mshyperv.h > @@ -33,6 +33,12 @@ extern bool hv_isolation_type_en_snp(void); > > extern union hv_ghcb * __percpu *hv_ghcb_pg; > > +/* > + * Hyper-V puts processor and memory layout info > + * to this address in SEV-SNP enlightened guest. > + */ > +#define EN_SEV_SNP_PROCESSOR_INFO_ADDR 0x802000 This hunk should be moved to the previous patch. It is not needed in this patch. Thanks, Wei.
