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authorLinus Torvalds <torvalds@linux-foundation.org>2009-01-31 15:52:46 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-31 15:52:46 -0800
commite81cfd214f97a26ca2b00564258ebcf099214cbb (patch)
treea59043fc9aeb41564f36533e7dc0b507f6261a37
parent4b8d8ab566932bfe023637025c76c0e90c655faf (diff)
parent7fc49f19813030f2e15ad2ccec5cb701f7f4a3ec (diff)
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86 setup: fix asm constraints in vesa_store_edid xen: make sysfs files behave as their names suggest x86: tone down mtrr_trim_uncached_memory() warning x86: correct the CPUID pattern for MSR_IA32_MISC_ENABLE availability
-rw-r--r--arch/x86/boot/video-vesa.c11
-rw-r--r--arch/x86/kernel/cpu/intel.c2
-rw-r--r--arch/x86/kernel/cpu/mtrr/main.c3
-rw-r--r--drivers/xen/balloon.c33
4 files changed, 39 insertions, 10 deletions
diff --git a/arch/x86/boot/video-vesa.c b/arch/x86/boot/video-vesa.c
index 75115849af3..4a58c8ce3f6 100644
--- a/arch/x86/boot/video-vesa.c
+++ b/arch/x86/boot/video-vesa.c
@@ -269,9 +269,8 @@ void vesa_store_edid(void)
we genuinely have to assume all registers are destroyed here. */
asm("pushw %%es; movw %2,%%es; "INT10"; popw %%es"
- : "+a" (ax), "+b" (bx)
- : "c" (cx), "D" (di)
- : "esi");
+ : "+a" (ax), "+b" (bx), "+c" (cx), "+D" (di)
+ : : "esi", "edx");
if (ax != 0x004f)
return; /* No EDID */
@@ -285,9 +284,9 @@ void vesa_store_edid(void)
dx = 0; /* EDID block number */
di =(size_t) &boot_params.edid_info; /* (ES:)Pointer to block */
asm(INT10
- : "+a" (ax), "+b" (bx), "+d" (dx), "=m" (boot_params.edid_info)
- : "c" (cx), "D" (di)
- : "esi");
+ : "+a" (ax), "+b" (bx), "+d" (dx), "=m" (boot_params.edid_info),
+ "+c" (cx), "+D" (di)
+ : : "esi");
#endif /* CONFIG_FIRMWARE_EDID */
}
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 549f2ada55f..430e5c38a54 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -30,7 +30,7 @@
static void __cpuinit early_init_intel(struct cpuinfo_x86 *c)
{
/* Unmask CPUID levels if masked: */
- if (c->x86 == 6 && c->x86_model >= 15) {
+ if (c->x86 > 6 || (c->x86 == 6 && c->x86_model >= 0xd)) {
u64 misc_enable;
rdmsrl(MSR_IA32_MISC_ENABLE, misc_enable);
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index d259e5d2e05..236a401b825 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -1594,8 +1594,7 @@ int __init mtrr_trim_uncached_memory(unsigned long end_pfn)
/* kvm/qemu doesn't have mtrr set right, don't trim them all */
if (!highest_pfn) {
- WARN(!kvm_para_available(), KERN_WARNING
- "WARNING: strange, CPU MTRRs all blank?\n");
+ printk(KERN_INFO "CPU MTRRs all blank - virtualized system.\n");
return 0;
}
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 2ba8f95516a..efa4b363ce7 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -498,7 +498,7 @@ static ssize_t store_target_kb(struct sys_device *dev,
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- target_bytes = memparse(buf, &endchar);
+ target_bytes = simple_strtoull(buf, &endchar, 0) * 1024;
balloon_set_new_target(target_bytes >> PAGE_SHIFT);
@@ -508,8 +508,39 @@ static ssize_t store_target_kb(struct sys_device *dev,
static SYSDEV_ATTR(target_kb, S_IRUGO | S_IWUSR,
show_target_kb, store_target_kb);
+
+static ssize_t show_target(struct sys_device *dev, struct sysdev_attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%llu\n",
+ (u64)balloon_stats.target_pages << PAGE_SHIFT);
+}
+
+static ssize_t store_target(struct sys_device *dev,
+ struct sysdev_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ char *endchar;
+ unsigned long long target_bytes;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ target_bytes = memparse(buf, &endchar);
+
+ balloon_set_new_target(target_bytes >> PAGE_SHIFT);
+
+ return count;
+}
+
+static SYSDEV_ATTR(target, S_IRUGO | S_IWUSR,
+ show_target, store_target);
+
+
static struct sysdev_attribute *balloon_attrs[] = {
&attr_target_kb,
+ &attr_target,
};
static struct attribute *balloon_info_attrs[] = {