Date: Mon, 4 Aug 2014 08:56:21 +0000 (UTC) From: Roger Pau Monné <royger@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r269511 - in head/sys/x86: acpica xen Message-ID: <53df4ab5.5c6e.5f2645f5@svn.freebsd.org>
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Author: royger Date: Mon Aug 4 08:56:20 2014 New Revision: 269511 URL: http://svnweb.freebsd.org/changeset/base/269511 Log: xen: change quality of the MADT ACPI enumerator Lower the quality of the MADT ACPI enumerator, so on Xen Dom0 we can force the usage of the Xen mptable enumerator even when ACPI is detected. This is needed because Xen might restrict the number of vCPUs available to Dom0, but the MADT ACPI table parsed in FreeBSD is the native one (which enumerates all the CPUs available in the system). Sponsored by: Citrix Systems R&D Reviewed by: gibbs x86/acpica/madt.c: - Lower MADT enumerator quality to -50. x86/xen/pvcpu_enum.c: - Rise Xen PV enumerator to 0. Modified: head/sys/x86/acpica/madt.c head/sys/x86/xen/pvcpu_enum.c Modified: head/sys/x86/acpica/madt.c ============================================================================== --- head/sys/x86/acpica/madt.c Mon Aug 4 08:54:34 2014 (r269510) +++ head/sys/x86/acpica/madt.c Mon Aug 4 08:56:20 2014 (r269511) @@ -102,7 +102,7 @@ madt_probe(void) madt_physaddr = acpi_find_table(ACPI_SIG_MADT); if (madt_physaddr == 0) return (ENXIO); - return (0); + return (-50); } /* Modified: head/sys/x86/xen/pvcpu_enum.c ============================================================================== --- head/sys/x86/xen/pvcpu_enum.c Mon Aug 4 08:54:34 2014 (r269510) +++ head/sys/x86/xen/pvcpu_enum.c Mon Aug 4 08:56:20 2014 (r269511) @@ -67,7 +67,7 @@ static struct apic_enumerator xenpv_enum static int xenpv_probe(void) { - return (-100); + return (0); } /*
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