Re: [PATCH v13 2/3] x86/mm: refactor __set_clr_pte_enc()

[Tom Lendacky]

On 8/1/24 14:14, Ashish Kalra wrote:
> From: Ashish Kalra <ashish.kalra@xxxxxxx>
> 
> Refactor __set_clr_pte_enc() and add two new helper functions to
> set/clear PTE C-bit from early SEV/SNP initialization code and
> later during shutdown/kexec especially when all CPUs are stopped
> and interrupts are disabled and set_memory_xx() interfaces can't
> be used.
> 
> Co-developed-by: Borislav Petkov (AMD) <bp@xxxxxxxxx>
> Signed-off-by: Borislav Petkov (AMD) <bp@xxxxxxxxx>
> Signed-off-by: Ashish Kalra <ashish.kalra@xxxxxxx>

Reviewed-by: Tom Lendacky <thomas.lendacky@xxxxxxx>

> ---
>  arch/x86/include/asm/sev.h    | 20 ++++++++++
>  arch/x86/mm/mem_encrypt_amd.c | 75 +++++++++++++++++++++++------------
>  2 files changed, 69 insertions(+), 26 deletions(-)
>