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Date: Mon, 27 Jan 2014 18:18:39 -0800 From: Mukesh Rathor <mukesh.rathor@...cle.com> To: konrad.wilk@...cle.com Cc: roger.pau@...rix.com, Xen-devel@...ts.xensource.com, linux-kernel@...r.kernel.org Subject: [V0 PATCH] pvh: Disable PSE feature for now Until now, xen did not expose PSE to pvh guest, but a patch was submitted to xen list to enable bunch of features for a pvh guest. PSE has not been looked into for PVH, so until we can do that and test it to make sure it works, disable the feature to avoid flood of bugs. Signed-off-by: Mukesh Rathor <mukesh.rathor@...cle.com> --- arch/x86/xen/enlighten.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index a4d7b64..4e952046 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -1497,6 +1497,11 @@ static void __init xen_pvh_early_guest_init(void) xen_have_vector_callback = 1; xen_pvh_set_cr_flags(0); + /* pvh guests are not quite ready for large pages yet */ + setup_clear_cpu_cap(X86_FEATURE_PSE); + setup_clear_cpu_cap(X86_FEATURE_PSE36); + + #ifdef CONFIG_X86_32 BUG(); /* PVH: Implement proper support. */ #endif -- 1.7.2.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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