From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: [PATCH 3/3] Revert "xen/x86: Workaround 'x86/ioapic: Add register level checks to detect bogus io-apic entries'" Date: Mon, 16 Apr 2012 14:40:16 -0400 Message-ID: <1334601616-25309-4-git-send-email-konrad.wilk@oracle.com> References: <1334601616-25309-1-git-send-email-konrad.wilk@oracle.com> Return-path: In-Reply-To: <1334601616-25309-1-git-send-email-konrad.wilk@oracle.com> Sender: linux-kernel-owner@vger.kernel.org To: linux-kernel@vger.kernel.org, mingo@kernel.org Cc: xen-devel@lists.xensource.com, suresh.b.siddha@intel.com, hpa@zytor.comhpa@zytor.co, tglx@linutronix.de, Konrad Rzeszutek Wilk List-Id: xen-devel@lists.xenproject.org This reverts commit 2531d64b6fe2724dc432b67d8dc66bd45621da0b. The two patches: x86/apic: Replace io_apic_ops with x86_io_apic_ops. xen/x86: Implement x86_apic_ops take care of fixing it properly. Signed-off-by: Konrad Rzeszutek Wilk --- arch/x86/xen/mmu.c | 4 +--- 1 files changed, 1 insertions(+), 3 deletions(-) diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index b8e2794..988828b 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -1859,7 +1859,6 @@ pgd_t * __init xen_setup_kernel_pagetable(pgd_t *pgd, #endif /* CONFIG_X86_64 */ static unsigned char dummy_mapping[PAGE_SIZE] __page_aligned_bss; -static unsigned char fake_ioapic_mapping[PAGE_SIZE] __page_aligned_bss; static void xen_set_fixmap(unsigned idx, phys_addr_t phys, pgprot_t prot) { @@ -1900,7 +1899,7 @@ static void xen_set_fixmap(unsigned idx, phys_addr_t phys, pgprot_t prot) * We just don't map the IO APIC - all access is via * hypercalls. Keep the address in the pte for reference. */ - pte = pfn_pte(PFN_DOWN(__pa(fake_ioapic_mapping)), PAGE_KERNEL); + pte = pfn_pte(PFN_DOWN(__pa(dummy_mapping)), PAGE_KERNEL); break; #endif @@ -2065,7 +2064,6 @@ void __init xen_init_mmu_ops(void) pv_mmu_ops = xen_mmu_ops; memset(dummy_mapping, 0xff, PAGE_SIZE); - memset(fake_ioapic_mapping, 0xfd, PAGE_SIZE); } /* Protected by xen_reservation_lock. */ -- 1.7.7.5