Thread (86 messages) 86 messages, 6 authors, 2021-07-05

Re: [PATCH Part1 RFC v3 06/22] x86/sev: check SEV-SNP features support

From: Brijesh Singh <hidden>
Date: 2021-06-07 16:01:41
Also in: kvm, linux-coco, linux-efi, linux-mm, lkml, platform-driver-x86

On 6/7/21 9:54 AM, Borislav Petkov wrote:
On Wed, Jun 02, 2021 at 09:04:00AM -0500, Brijesh Singh wrote:
quoted
 static bool early_setup_sev_es(void)
This function is doing SNP init now too, so it should be called
something generic like

	do_early_sev_setup()

or so.
Okay, noted.

quoted
 #define GHCB_SEV_ES_GEN_REQ		0
 #define GHCB_SEV_ES_PROT_UNSUPPORTED	1
+#define GHCB_SEV_ES_SNP_UNSUPPORTED	2
GHCB_SNP_UNSUPPORTED
Noted.

quoted
+static bool __init sev_snp_check_hypervisor_features(void)
check_hv_features()

is nice and short.
Noted.

quoted
diff --git a/arch/x86/kernel/sev.c b/arch/x86/kernel/sev.c
index 77a754365ba9..9b70b7332614 100644
--- a/arch/x86/kernel/sev.c
+++ b/arch/x86/kernel/sev.c
@@ -609,6 +609,10 @@ static bool __init sev_es_setup_ghcb(void)
Ditto for this one: setup_ghcb()
Noted.

Thx.
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