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QEMU e820 reservation patch

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Hi,

Kevin and I have agreed on the approach for this one now. So here is
the latest version of the patch for QEMU, submitting e820 reservation
entries via fw_cfg.

Cheers,
Jes

Use qemu-cfg to provide the BIOS with an optional table of e820 entries.

Notify the BIOS of the location of the TSS+EPT range to by reserving
it via the e820 table.

This matches a corresponding patch for Seabios, however older versions
of Seabios will default to the hardcoded address range and stay
compatible with current QEMU.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Jes Sorensen 2010-02-15 18:33:46 +01:00 • committed by Anthony Liguori
parent ed487bb1d6
commit 4c5b10b7b6
3 changed files with 53 additions and 0 deletions
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10
hw/pc.h
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@ -150,4 +150,14 @@ void isa_cirrus_vga_init(void);
void isa_ne2000_init(int base, int irq, NICInfo *nd);
int cpu_is_bsp(CPUState *env);
/* e820 types */
#define E820_RAM 1
#define E820_RESERVED 2
#define E820_ACPI 3
#define E820_NVS 4
#define E820_UNUSABLE 5
int e820_add_entry(uint64_t, uint64_t, uint32_t);
#endif