Messages in this thread | | | Subject | Re: [Resend RFC PATCH V4 13/13] x86/HV: Not set memory decrypted/encrypted during kexec alloc/free page in IVM | From | Tianyu Lan <> | Date | Thu, 8 Jul 2021 21:54:15 +0800 |
| |
Hi Dave: Thanks for your review.
On 7/8/2021 12:14 AM, Dave Hansen wrote: > On 7/7/21 8:46 AM, Tianyu Lan wrote: >> @@ -598,7 +599,7 @@ void arch_kexec_unprotect_crashkres(void) >> */ >> int arch_kexec_post_alloc_pages(void *vaddr, unsigned int pages, gfp_t gfp) >> { >> - if (sev_active()) >> + if (sev_active() || hv_is_isolation_supported()) >> return 0; >> >> /* >> @@ -611,7 +612,7 @@ int arch_kexec_post_alloc_pages(void *vaddr, unsigned int pages, gfp_t gfp) >> >> void arch_kexec_pre_free_pages(void *vaddr, unsigned int pages) >> { >> - if (sev_active()) >> + if (sev_active() || hv_is_isolation_supported()) >> return; > > You might want to take a look through the "protected guest" patches. I > think this series is touching a few of the same locations that TDX and > recent SEV work touch. > > https://lore.kernel.org/lkml/20210618225755.662725-5-sathyanarayanan.kuppuswamy@linux.intel.com/
Thanks for reminder. You are right. There will be a generic API to check "proteced guest" type.
| |