WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-changelog

[Xen-changelog] [xen-unstable] pm: don't truncate processors' ACPI IDs t

To: xen-changelog@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-changelog] [xen-unstable] pm: don't truncate processors' ACPI IDs to 8 bits
From: Xen patchbot-unstable <patchbot@xxxxxxx>
Date: Mon, 22 Aug 2011 15:33:08 +0100
Delivery-date: Mon, 22 Aug 2011 07:33:41 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
List-help: <mailto:xen-changelog-request@lists.xensource.com?subject=help>
List-id: BK change log <xen-changelog.lists.xensource.com>
List-post: <mailto:xen-changelog@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-changelog>, <mailto:xen-changelog-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-changelog>, <mailto:xen-changelog-request@lists.xensource.com?subject=unsubscribe>
Reply-to: xen-devel@xxxxxxxxxxxxxxxxxxx
Sender: xen-changelog-bounces@xxxxxxxxxxxxxxxxxxx
# HG changeset patch
# User Jan Beulich <jbeulich@xxxxxxxxxx>
# Date 1314004239 -3600
# Node ID 0849b0e59e2418e8215616df147f955b01b07577
# Parent  07f78b5bd03c02e32324eaa00487643d27b7ffa8
pm: don't truncate processors' ACPI IDs to 8 bits

This is just another adjustment to allow systems with very many CPUs
(or unusual ACPI IDs) to be properly power-managed.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>
---


diff -r 07f78b5bd03c -r 0849b0e59e24 xen/arch/ia64/linux-xen/acpi.c
--- a/xen/arch/ia64/linux-xen/acpi.c    Mon Aug 22 10:10:04 2011 +0100
+++ b/xen/arch/ia64/linux-xen/acpi.c    Mon Aug 22 10:10:39 2011 +0100
@@ -221,11 +221,14 @@
                {[0 ... MAX_LOCAL_SAPIC - 1] = 0xffff };
 
 /* acpi id to cpu id */
-int get_cpu_id(u8 acpi_id)
+int get_cpu_id(u32 acpi_id)
 {
        int i;
        u16 apic_id;
 
+       if ( acpi_id >= MAX_LOCAL_SAPIC )
+               return -EINVAL;
+
        apic_id = ia64_acpiid_to_sapicid[acpi_id];
        if ( apic_id == 0xffff )
                return -EINVAL;
diff -r 07f78b5bd03c -r 0849b0e59e24 xen/arch/x86/acpi/cpu_idle.c
--- a/xen/arch/x86/acpi/cpu_idle.c      Mon Aug 22 10:10:04 2011 +0100
+++ b/xen/arch/x86/acpi/cpu_idle.c      Mon Aug 22 10:10:39 2011 +0100
@@ -895,11 +895,14 @@
         acpi_power->safe_state = cx;
 }
 
-int get_cpu_id(u8 acpi_id)
+int get_cpu_id(u32 acpi_id)
 {
     int i;
     u32 apic_id;
 
+    if ( acpi_id >= MAX_MADT_ENTRIES )
+        return -1;
+
     apic_id = x86_acpiid_to_apicid[acpi_id];
     if ( apic_id == BAD_APICID )
         return -1;
@@ -976,7 +979,7 @@
     print_cx_pminfo(cpu, power);
 
     /* map from acpi_id to cpu_id */
-    cpu_id = get_cpu_id((u8)cpu);
+    cpu_id = get_cpu_id(cpu);
     if ( cpu_id == -1 )
     {
         printk(XENLOG_ERR "no cpu_id for acpi_id %d\n", cpu);
diff -r 07f78b5bd03c -r 0849b0e59e24 xen/include/acpi/cpufreq/processor_perf.h
--- a/xen/include/acpi/cpufreq/processor_perf.h Mon Aug 22 10:10:04 2011 +0100
+++ b/xen/include/acpi/cpufreq/processor_perf.h Mon Aug 22 10:10:39 2011 +0100
@@ -6,7 +6,7 @@
 
 #define XEN_PX_INIT 0x80000000
 
-int get_cpu_id(u8);
+int get_cpu_id(u32);
 int powernow_cpufreq_init(void);
 unsigned int powernow_register_driver(void);
 unsigned int get_measured_perf(unsigned int cpu, unsigned int flag);

_______________________________________________
Xen-changelog mailing list
Xen-changelog@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-changelog

<Prev in Thread] Current Thread [Next in Thread>
  • [Xen-changelog] [xen-unstable] pm: don't truncate processors' ACPI IDs to 8 bits, Xen patchbot-unstable <=