[PATCH] ensure 4kB page alignment for embedded powerpc when using kvm

[PATCH] ensure 4kB page alignment for embedded powerpc when using kvm

[Christian Ehrhardt]

Subject: [PATCH] ensure 4kB page alignment for embedded powerpc when using kvm 
From: Hollis Blanchard <hollisb-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
From: Christian Ehrhardt <ehrhardt-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>

We need 4kB aligned pages when using qemu together with kvm for embedded
powerpc. Qemu already had a similar issue when CONFIG_USER_ONLY was set
so this patch adds just one more condition to the existing ifdef.

Signed-off-by: Christian Ehrhardt <ehrhardt-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
Signed-off-by: Hollis Blanchard <hollisb-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
---
 cpu.h |    3 ++-
 1 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/qemu/target-ppc/cpu.h b/qemu/target-ppc/cpu.h
--- a/qemu/target-ppc/cpu.h
+++ b/qemu/target-ppc/cpu.h
@@ -50,9 +50,10 @@ typedef uint32_t ppc_gpr_t;
 /* Specific definitions for PowerPC embedded */
 /* BookE have 36 bits physical address space */
 #define TARGET_PHYS_ADDR_BITS 64
-#if defined(CONFIG_USER_ONLY)
+#if defined(CONFIG_USER_ONLY) || defined(USE_KVM)
 /* It looks like a lot of Linux programs assume page size
  * is 4kB long. This is evil, but we have to deal with it...
+ * Also kvm for embedded powerpc needs (atm) 4kB aligned pages
  */
 #define TARGET_PAGE_BITS 12
 #else /* defined(CONFIG_USER_ONLY) */

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[PATCH] add more regs to kvm_show_regs for powerpc

[Christian Ehrhardt]

Subject: [PATCH] add more regs to kvm_show_regs for powerpc 
From: Hollis Blanchard <hollisb-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
From: Christian Ehrhardt <ehrhardt-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>

This make "extra pages" allocation only apply to x86.
IA64 already had an exclusion and so does ppc. This patch switches the
default to no extra pages and lets I386 and X86_64 get it's 3 extra pages
as needed.

Signed-off-by: Christian Ehrhardt <ehrhardt-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
Signed-off-by: Hollis Blanchard <hollisb-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>

diff --git a/qemu/vl.c b/qemu/vl.c
--- a/qemu/vl.c
+++ b/qemu/vl.c
@@ -9313,10 +9313,10 @@ int main(int argc, char **argv)
 
 #if USE_KVM
     /* Initialize kvm */
-#ifdef TARGET_IA64
+#if defined(TARGET_I386) || defined(TARGET_X86_64)
+#define KVM_EXTRA_PAGES 3
+#else
 #define KVM_EXTRA_PAGES 0
-#else
-#define KVM_EXTRA_PAGES 3
 #endif
     if (kvm_allowed) {
 	    phys_ram_size += KVM_EXTRA_PAGES * TARGET_PAGE_SIZE;

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