1 files changed, 0 insertions, 62 deletions
diff --git a/pc-bios/bios-pq/0006_kvm-bios-extend-mtrrs-to-above-4g.patch b/pc-bios/bios-pq/0006_kvm-bios-extend-mtrrs-to-above-4g.patch
deleted file mode 100644
index 7350b47992..0000000000
--- a/pc-bios/bios-pq/0006_kvm-bios-extend-mtrrs-to-above-4g.patch
+++ /dev/null
@@ -1,62 +0,0 @@
-extend MTRRs to above 4G (Alex Williamson)
-
-When I try to boot guests using a recent Linux kernel (2.6.26+), memory
-above 3.5G gets thrown away with an error like this:
-
-WARNING: BIOS bug: CPU MTRRs don't cover all of memory, losing 4608MB of RAM
-
-This extends MTRRs to cover all of memory.
-
-Signed-off-by: Alex Williamson <alex.williamson@hp.com>
-Signed-off-by: Avi Kivity <avi@redhat.com>
-Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
-
-Index: bochs/bios/rombios32.c
-===================================================================
---- bochs.orig/bios/rombios32.c
-+++ bochs/bios/rombios32.c
-@@ -427,6 +427,7 @@ uint32_t cpuid_signature;
- uint32_t cpuid_features;
- uint32_t cpuid_ext_features;
- unsigned long ram_size;
-+uint64_t above4g_ram_size;
- uint8_t bios_uuid[16];
- #ifdef BX_USE_EBDA_TABLES
- unsigned long ebda_cur_addr;
-@@ -561,6 +562,14 @@ void setup_mtrr(void)
-         wrmsr_smp(MTRRphysMask_MSR(i), (~vmask & 0xfffffff000ull) | 0x800);
-         vbase += vmask + 1;
-     }
-+    for (vbase = 1ull << 32; i < vcnt && vbase < above4g_ram_size; ++i) {
-+        vmask = (1ull << 40) - 1;
-+        while (vbase + vmask + 1 > above4g_ram_size)
-+            vmask >>= 1;
-+        wrmsr_smp(MTRRphysBase_MSR(i), vbase | 6);
-+        wrmsr_smp(MTRRphysMask_MSR(i), (~vmask & 0xfffffff000ull) | 0x800);
-+        vbase += vmask + 1;
-+    }
-     wrmsr_smp(MSR_MTRRdefType, 0xc00);
- }
-
-@@ -572,11 +581,19 @@ void ram_probe(void)
-   else
-     ram_size = (cmos_readb(0x30) | (cmos_readb(0x31) << 8)) * 1024 +
-         1 * 1024 * 1024;
-+  if (cmos_readb(0x5b) | cmos_readb(0x5c) | cmos_readb(0x5d))
-+    above4g_ram_size = ((uint64_t)cmos_readb(0x5b) << 16) |
-+        ((uint64_t)cmos_readb(0x5c) << 24) | ((uint64_t)cmos_readb(0x5d) << 32);
-+
-+  if (above4g_ram_size)
-+    above4g_ram_size += 1ull << 32;
-+
-   BX_INFO("ram_size=0x%08lx\n", ram_size);
- #ifdef BX_USE_EBDA_TABLES
-   ebda_cur_addr = ((*(uint16_t *)(0x40e)) << 4) + 0x380;
-   BX_INFO("ebda_cur_addr: 0x%08lx\n", ebda_cur_addr);
- #endif
-+  BX_INFO("top of ram %ldMB\n", above4g_ram_size >> 20);
-   setup_mtrr();
- }
-
-
-