Re: [PATCH v2 06/12] x86/sev: Cache AP Jump Table Address
From: Borislav Petkov <bp@alien8.de>
Date: 2021-11-08 18:14:24
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On Mon, Sep 13, 2021 at 05:55:57PM +0200, Joerg Roedel wrote:
quoted hunk ↗ jump to hunk
From: Joerg Roedel <redacted> Store the physical address of the AP Jump Table in kernel memory so that it does not need to be fetched from the Hypervisor again. Signed-off-by: Joerg Roedel <redacted> --- arch/x86/kernel/sev.c | 26 ++++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-)diff --git a/arch/x86/kernel/sev.c b/arch/x86/kernel/sev.c index 5d3422e8b25e..eedba56b6bac 100644 --- a/arch/x86/kernel/sev.c +++ b/arch/x86/kernel/sev.c@@ -42,6 +42,9 @@ static struct ghcb boot_ghcb_page __bss_decrypted __aligned(PAGE_SIZE); */ static struct ghcb __initdata *boot_ghcb; +/* Cached AP Jump Table Address */ +static phys_addr_t sev_es_jump_table_pa;
This is static, so "jump_table_pa" should be enough.
Also, to the prefixes, everything which is not SEV-ES only, should be
simply prefixed with "sev_" if externally visible.
Thx.
--
Regards/Gruss,
Boris.
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