[Qemu-commits] [COMMIT a7b022e] PPC: Round VGA BIOS size to page boundary

[Anthony Liguori]

From: Alexander Graf <address@hidden>

When giving KVM a slot of a size not on page boundary, it chokes. So let's
just round up the VGA BIOS size so nobody complains anymore and we don't need
to implement sub-page slots.

Required for booting a PPC guest in KVM.

Signed-off-by: Alexander Graf <address@hidden>

diff --git a/hw/ppc_newworld.c b/hw/ppc_newworld.c
index 4e5043c..1c512a2 100644
--- a/hw/ppc_newworld.c
+++ b/hw/ppc_newworld.c
@@ -179,6 +179,10 @@ static void ppc_core99_init (ram_addr_t ram_size,
         vga_bios_ptr[3] = 'V';
         cpu_to_be32w((uint32_t *)(vga_bios_ptr + 4), vga_bios_size);
         vga_bios_size += 8;
+
+        /* Round to page boundary */
+        vga_bios_size = (vga_bios_size + TARGET_PAGE_SIZE - 1) &
+            TARGET_PAGE_MASK;
     }
 
     if (linux_boot) {
diff --git a/hw/ppc_oldworld.c b/hw/ppc_oldworld.c
index b26e407..56b2876 100644
--- a/hw/ppc_oldworld.c
+++ b/hw/ppc_oldworld.c
@@ -212,6 +212,10 @@ static void ppc_heathrow_init (ram_addr_t ram_size,
         vga_bios_ptr[3] = 'V';
         cpu_to_be32w((uint32_t *)(vga_bios_ptr + 4), vga_bios_size);
         vga_bios_size += 8;
+
+        /* Round to page boundary */
+        vga_bios_size = (vga_bios_size + TARGET_PAGE_SIZE - 1) &
+            TARGET_PAGE_MASK;
     }
 
     if (linux_boot) {