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| author | Igor Mammedov <imammedo@redhat.com> | 2014-06-02 15:25:10 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2014-06-19 16:41:48 +0300 |
| commit | de268e134c03612970d6f2c214df6287c9621cc8 (patch) | |
| tree | 161cfb7b8c6e047be413fbc68fb75cc15fb91c77 /hw/i386/pc_q35.c | |
| parent | a0cc8856e8722188583901665c7d9e5ddc752fc0 (diff) | |
| download | focaccia-qemu-de268e134c03612970d6f2c214df6287c9621cc8.tar.gz focaccia-qemu-de268e134c03612970d6f2c214df6287c9621cc8.zip | |
pc: add 'etc/reserved-memory-end' fw_cfg interface for SeaBIOS
'etc/reserved-memory-end' will allow QEMU to tell BIOS where PCI BARs mapping could safely start in high memory. Allowing BIOS to start mapping 64-bit PCI BARs at address where it wouldn't conflict with other mappings QEMU might place before it. That permits QEMU to reserve extra address space before 64-bit PCI hole for memory hotplug. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/i386/pc_q35.c')
| -rw-r--r-- | hw/i386/pc_q35.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c index d2113937be..0e774765e9 100644 --- a/hw/i386/pc_q35.c +++ b/hw/i386/pc_q35.c @@ -57,6 +57,7 @@ static bool smbios_legacy_mode; * pages in the host. */ static bool gigabyte_align = true; +static bool has_reserved_memory = true; /* PC hardware initialisation */ static void pc_q35_init(MachineState *machine) @@ -130,6 +131,7 @@ static void pc_q35_init(MachineState *machine) guest_info->has_pci_info = has_pci_info; guest_info->isapc_ram_fw = false; guest_info->has_acpi_build = has_acpi_build; + guest_info->has_reserved_memory = has_reserved_memory; if (smbios_defaults) { MachineClass *mc = MACHINE_GET_CLASS(machine); @@ -245,6 +247,7 @@ static void pc_q35_init(MachineState *machine) static void pc_compat_2_0(MachineState *machine) { smbios_legacy_mode = true; + has_reserved_memory = false; } static void pc_compat_1_7(MachineState *machine) |