From fcf91ce9de66e167f2779c831501f5ad91d02dfc Mon Sep 17 00:00:00 2001 From: =?utf8?q?Roger=20Pau=20Monn=C3=A9?= Date: Tue, 26 Nov 2024 11:23:58 +0100 Subject: [PATCH] x86/pv: don't populate the GDT/LDT L3 slot at domain creation MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The current code in pv_domain_initialise() populates the L3 slot used for the GDT/LDT, however that's not needed, since the create_perdomain_mapping() in pv_create_gdt_ldt_l1tab() will already take care of allocating an L2 and populating the L3 entry if not present. No functional change intended. Signed-off-by: Roger Pau Monné Reviewed-by: Jan Beulich --- xen/arch/x86/pv/domain.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/xen/arch/x86/pv/domain.c b/xen/arch/x86/pv/domain.c index d5a8564c1c..7aef628f55 100644 --- a/xen/arch/x86/pv/domain.c +++ b/xen/arch/x86/pv/domain.c @@ -376,12 +376,6 @@ int pv_domain_initialise(struct domain *d) (d->arch.pv.cpuidmasks = xmemdup(&cpuidmask_defaults)) == NULL ) goto fail; - rc = create_perdomain_mapping(d, GDT_LDT_VIRT_START, - GDT_LDT_MBYTES << (20 - PAGE_SHIFT), - NULL, NULL); - if ( rc ) - goto fail; - d->arch.ctxt_switch = &pv_csw; if ( !is_pv_32bit_domain(d) && use_invpcid && cpu_has_pcid ) -- 2.39.5