Re: [PATCH V6 5/8] x86/hyperv: Add Write/Read MSR registers via ghcb page
From: Tom Lendacky <thomas.lendacky@amd.com>
Date: 2021-09-30 18:34:53
Also in:
linux-hyperv, lkml, netdev
On 9/30/21 8:05 AM, Tianyu Lan wrote:
From: Tianyu Lan <redacted>
...
quoted hunk ↗ jump to hunk
diff --git a/arch/x86/kernel/sev-shared.c b/arch/x86/kernel/sev-shared.c index 9f90f460a28c..dd7f37de640b 100644 --- a/arch/x86/kernel/sev-shared.c +++ b/arch/x86/kernel/sev-shared.c@@ -94,10 +94,9 @@ static void vc_finish_insn(struct es_em_ctxt *ctxt) ctxt->regs->ip += ctxt->insn.length; } -static enum es_result sev_es_ghcb_hv_call(struct ghcb *ghcb, - struct es_em_ctxt *ctxt, - u64 exit_code, u64 exit_info_1, - u64 exit_info_2) +enum es_result sev_es_ghcb_hv_call_simple(struct ghcb *ghcb, + u64 exit_code, u64 exit_info_1, + u64 exit_info_2)
Oh, and a nice comment about when to use this function directly vs. the non-simple one would be nice to have (basically use this one only for the Hyper-V Isolation VM support). Thanks, Tom