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OvmfPkg: Add RDRAND Support To QEMU

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In order to use dynamic stack cookies, we need RDRAND support
from QEMU, so this updates the QEMU launching code for OvmfPkg
to include RDRAND support.

Signed-off-by: Oliver Smith-Denny <osde@linux.microsoft.com>
This commit is contained in:
Oliver Smith-Denny 2024-10-28 10:49:35 -07:00 committed by mergify[bot]
parent e6b6aa90d4
commit 6d741357c2
1 changed files with 3 additions and 0 deletions
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OvmfPkg/PlatformCI/PlatformBuildLib.py
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@ -207,6 +207,9 @@ class PlatformBuilder( UefiBuilder, BuildSettingsManager):
args += " -global isa-debugcon.iobase=0x402" # debug messages out thru virtual io port
args += " -net none" # turn off network
args += " -smp 4"
args += " -cpu IvyBridge,+rdrand" # IvyBridge is the first CPU that supported
# RDRAND, which is required for dynamic
# stack cookies
args += f" -drive file=fat:rw:{VirtualDrive},format=raw,media=disk" # Mount disk with startup.nsh
# Provides Rng services to the Guest VM
args += " -device virtio-rng-pci"