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openSUSE:Step:15-SP4
xen.28171
62f523da-AMD-setup_force_cpu_cap-BSP-only.patch
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File 62f523da-AMD-setup_force_cpu_cap-BSP-only.patch of Package xen.28171
# Commit 31b41ce858c8bd5159212d40969f8e0b7124bbf0 # Date 2022-08-11 17:44:26 +0200 # Author Ross Lagerwall <ross.lagerwall@citrix.com> # Committer Jan Beulich <jbeulich@suse.com> x86/amd: only call setup_force_cpu_cap for boot CPU This should only be called for the boot CPU to avoid calling _init code after it has been unloaded. Fixes: 062868a5a8b4 ("x86/amd: Work around CLFLUSH ordering on older parts") Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com> Reviewed-by: Jan Beulich <jbeulich@suse.com> --- a/xen/arch/x86/cpu/amd.c +++ b/xen/arch/x86/cpu/amd.c @@ -820,7 +820,7 @@ static void init_amd(struct cpuinfo_x86 * everything, including reads and writes to address, and * LFENCE/SFENCE instructions. */ - if (!cpu_has_clflushopt) + if (c == &boot_cpu_data && !cpu_has_clflushopt) setup_force_cpu_cap(X86_BUG_CLFLUSH_MFENCE); switch(c->x86)
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