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[PATCH] x86/spec-ctrl: Add SRSO whitepaper URL
- To: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Wed, 9 Aug 2023 16:08:54 +0100
- Authentication-results: esa3.hc3370-68.iphmx.com; dkim=none (message not signed) header.i=none
- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>
- Delivery-date: Wed, 09 Aug 2023 15:09:20 +0000
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- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
... now that it exists in public.
Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
CC: Jan Beulich <JBeulich@xxxxxxxx>
CC: Roger Pau Monné <roger.pau@xxxxxxxxxx>
CC: Wei Liu <wl@xxxxxxx>
I did try to get this URL ahead of finalising the XSA-434 patches, but alas...
---
xen/arch/x86/spec_ctrl.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/xen/arch/x86/spec_ctrl.c b/xen/arch/x86/spec_ctrl.c
index ebe56a96cdca..bafc41a2f6c4 100644
--- a/xen/arch/x86/spec_ctrl.c
+++ b/xen/arch/x86/spec_ctrl.c
@@ -898,6 +898,9 @@ static bool __init should_use_eager_fpu(void)
}
}
+/*
+ *
https://www.amd.com/content/dam/amd/en/documents/corporate/cr/speculative-return-stack-overflow-whitepaper.pdf
+ */
static void __init srso_calculations(bool hw_smt_enabled)
{
if ( !(boot_cpu_data.x86_vendor &
base-commit: 236fc9fdf97f4e7c64824ab793e8dca30dd54ffb
--
2.30.2
|
