From 723c9ab1672104e9eed440b4204d7a195858b4e4 Mon Sep 17 00:00:00 2001 From: Keir Fraser Date: Mon, 29 Dec 2008 13:32:32 +0000 Subject: [PATCH] x86: Do not restrict 32-bit EPT to 4GB. Signed-off-by: Xin, Xiaohui --- xen/arch/x86/mm/p2m.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/xen/arch/x86/mm/p2m.c b/xen/arch/x86/mm/p2m.c index d32498092e..72f470dcf1 100644 --- a/xen/arch/x86/mm/p2m.c +++ b/xen/arch/x86/mm/p2m.c @@ -935,11 +935,12 @@ guest_physmap_add_entry(struct domain *d, unsigned long gfn, #if CONFIG_PAGING_LEVELS == 3 /* - * 32bit PAE nested paging does not support over 4GB guest due to + * 32bit AMD nested paging does not support over 4GB guest due to * hardware translation limit. This limitation is checked by comparing * gfn with 0xfffffUL. */ - if ( paging_mode_hap(d) && (gfn > 0xfffffUL) ) + if ( paging_mode_hap(d) && (gfn > 0xfffffUL) && + (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) ) { if ( !test_and_set_bool(d->arch.hvm_domain.svm.npt_4gb_warning) ) dprintk(XENLOG_WARNING, "Dom%d failed to populate memory beyond" -- 2.30.2