[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Resend RFC PATCH V4 13/13] x86/HV: Not set memory decrypted/encrypted during kexec alloc/free page in IVM

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())

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.


Thanks for reminder. You are right. There will be a generic API to check "proteced guest" type.



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.