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--- xen-unstable.hg-rev-24232_b/tools/firmware/hvmloader/acpi/dsdt.asl 2011-11-25 21:55:23.000000000 +0100
+++ xen-unstable.hg-rev-24232_a/tools/firmware/hvmloader/acpi/dsdt.asl 2011-11-26 14:19:33.000000000 +0100
@@ -142,15 +142,43 @@ DefinitionBlock ("DSDT.aml", "DSDT", 2,
0x00000000,
0x00020000)
+ /* reserve MMIO BARs of gfx for 1:1 mapping */
DWordMemory(
ResourceProducer, PosDecode, MinFixed, MaxFixed,
Cacheable, ReadWrite,
0x00000000,
- 0xF0000000,
- 0xF4FFFFFF,
+ 0xF8000000,
+ 0xF9FFFFFF,
0x00000000,
- 0x05000000,
- ,, _Y01)
+ 0x02000000)
+
+ DWordMemory(
+ ResourceProducer, PosDecode, MinFixed, MaxFixed,
+ NonCacheable, ReadWrite,
+ 0x00000000,
+ 0xD0000000,
+ 0xD7FFFFFF,
+ 0x00000000,
+ 0x08000000)
+
+ DWordMemory(
+ ResourceProducer, PosDecode, MinFixed, MaxFixed,
+ Cacheable, ReadWrite,
+ 0x00000000,
+ 0xD8000000,
+ 0xDBFFFFFF,
+ 0x00000000,
+ 0x4000000)
+
+ DWordMemory(
+ ResourceProducer, PosDecode, MinFixed, MaxFixed,
+ Cacheable, ReadWrite,
+ 0x00000000,
+ 0xFB000000,
+ 0xFB07FFFF,
+ 0x00000000,
+ 0x00080000,
+ ,, _Y01)
})
CreateDWordField(PRT0, \_SB.PCI0._CRS._Y01._MIN, MMIN)
--- xen-unstable.hg-rev-24232_b/tools/firmware/hvmloader/hvmloader.c 2011-11-25 21:55:23.000000000 +0100
+++ xen-unstable.hg-rev-24232_a/tools/firmware/hvmloader/hvmloader.c 2011-11-26 14:19:33.000000000 +0100
@@ -31,6 +31,7 @@
#include
#define ROM_INCLUDE_VGABIOS
+#define ROM_INCLUDE_PTVGABIOS
#define ROM_INCLUDE_ETHERBOOT
#include "roms.inc"
@@ -113,6 +114,9 @@ asm (
unsigned long scratch_start = SCRATCH_PHYSICAL_ADDRESS;
+/* virtual BDF of pass-throughed gfx */
+uint8_t gfx_bdf;
+
static void init_hypercalls(void)
{
uint32_t eax, ebx, ecx, edx;
@@ -310,6 +314,20 @@ static int pci_load_option_roms(unsigned
return rom_phys_addr - rom_base_addr;
}
+static void init_vm86_tss(void)
+{
+ void *tss;
+ struct xen_hvm_param p;
+
+ tss = mem_alloc(128, 128);
+ memset(tss, 0, 128);
+ p.domid = DOMID_SELF;
+ p.index = HVM_PARAM_VM86_TSS;
+ p.value = virt_to_phys(tss);
+ hypercall_hvm_op(HVMOP_set_param, &p);
+ printf("vm86 TSS at %08lx\n", virt_to_phys(tss));
+}
+
/* Replace possibly erroneous memory-size CMOS fields with correct values. */
static void cmos_write_memory_size(void)
{
@@ -336,25 +354,6 @@ static void cmos_write_memory_size(void)
cmos_outb(0x35, (uint8_t)( alt_mem >> 8));
}
-/*
- * Set up an empty TSS area for virtual 8086 mode to use.
- * The only important thing is that it musn't have any bits set
- * in the interrupt redirection bitmap, so all zeros will do.
- */
-static void init_vm86_tss(void)
-{
- void *tss;
- struct xen_hvm_param p;
-
- tss = mem_alloc(128, 128);
- memset(tss, 0, 128);
- p.domid = DOMID_SELF;
- p.index = HVM_PARAM_VM86_TSS;
- p.value = virt_to_phys(tss);
- hypercall_hvm_op(HVMOP_set_param, &p);
- printf("vm86 TSS at %08lx\n", virt_to_phys(tss));
-}
-
static void apic_setup(void)
{
/* Set the IOAPIC ID to the static value used in the MP/ACPI tables. */
@@ -488,8 +487,10 @@ int main(void)
break;
case VGA_pt:
printf("Loading VGABIOS of passthroughed gfx ...\n");
- vgabios_sz = round_option_rom(
- (*(uint8_t *)(VGABIOS_PHYSICAL_ADDRESS+2)) * 512);
+ memcpy((void *)VGABIOS_PHYSICAL_ADDRESS,
+ vgabios_pt, sizeof(vgabios_pt));
+ *(uint8_t *)(VGABIOS_PHYSICAL_ADDRESS + sizeof(vgabios_pt)) = gfx_bdf;
+ vgabios_sz = round_option_rom(sizeof(vgabios_pt) + 1);
break;
default:
printf("No emulated VGA adaptor ...\n");
@@ -528,7 +529,7 @@ int main(void)
hypercall_hvm_op(HVMOP_set_param, &p);
}
- init_vm86_tss();
+ init_vm86_tss();
cmos_write_memory_size();
--- xen-unstable.hg-rev-24232_b/tools/firmware/hvmloader/Makefile 2011-11-25 21:55:23.000000000 +0100
+++ xen-unstable.hg-rev-24232_a/tools/firmware/hvmloader/Makefile 2011-11-26 14:19:33.000000000 +0100
@@ -56,6 +56,7 @@ CIRRUSVGA_ROM := ../vgabios/VGABIOS-lgpl
else
CIRRUSVGA_ROM := ../vgabios/VGABIOS-lgpl-latest.cirrus.bin
endif
+PTVGA_ROM := ../vgabios/vgabios-pt.bin
.PHONY: all
all: subdirs-all
@@ -94,6 +95,11 @@ ifneq ($(CIRRUSVGA_ROM),)
sh ./mkhex vgabios_cirrusvga $(CIRRUSVGA_ROM) >> $@.new
echo "#endif" >> $@.new
endif
+ifneq ($(PTVGA_ROM),)
+ echo "#ifdef ROM_INCLUDE_PTVGABIOS" >> $@.new
+ sh ./mkhex vgabios_pt $(PTVGA_ROM) >> $@.new
+ echo "#endif" >> $@.new
+endif
echo "#ifdef ROM_INCLUDE_ETHERBOOT" >> $@.new
cat ../etherboot/eb-roms.h >> $@.new
--- xen-unstable.hg-rev-24232_b/tools/ioemu-remote/hw/pass-through.c 2011-11-26 17:28:22.000000000 +0100
+++ xen-unstable.hg-rev-24232_a/tools/ioemu-remote/hw/pass-through.c 2011-11-26 14:19:33.000000000 +0100
@@ -3243,6 +3243,8 @@ static int pt_cmd_reg_read(struct pt_dev
}
/* read BAR */
+static int gfx_first_read_BAR[7] = {1, 1, 1, 1, 1, 1, 1};
+
static int pt_bar_reg_read(struct pt_dev *ptdev,
struct pt_reg_tbl *cfg_entry,
uint32_t *value, uint32_t valid_mask)
@@ -3265,6 +3267,17 @@ static int pt_bar_reg_read(struct pt_dev
/* use fixed-up value from kernel sysfs */
*value = ptdev->pci_dev->base_addr[index];
+ if ( ptdev->pci_dev->device_class == 0x300 )
+ {
+ if ( gfx_first_read_BAR[index] == 1 )
+ {
+ gfx_first_read_BAR[index] = 0;
+ PT_LOG("first read BARs of gfx\n");
+ return 0;
+ }
+ }
+
+
/* set emulate mask depend on BAR flag */
switch (ptdev->bases[index].bar_flag)
{
--- xen-unstable.hg-rev-24232_b/tools/firmware/hvmloader/pci.c 2011-11-25 21:55:23.000000000 +0100
+++ xen-unstable.hg-rev-24232_a/tools/firmware/hvmloader/pci.c 2011-11-26 17:03:42.000000000 +0100
@@ -34,6 +34,10 @@ unsigned long pci_mem_end = PCI_MEM_END;
enum virtual_vga virtual_vga = VGA_none;
unsigned long igd_opregion_pgbase = 0;
+/* virtual BDF of pass-throughed gfx declared in hvmloader.c*/
+extern uint8_t gfx_bdf;
+
+
void pci_setup(void)
{
uint32_t base, devfn, bar_reg, bar_data, bar_sz, cmd, mmio_total = 0;
@@ -94,19 +98,43 @@ void pci_setup(void)
}
else if ( virtual_vga == VGA_none )
{
- vga_devfn = devfn;
- virtual_vga = VGA_pt;
- if ( vendor_id == 0x8086 )
- {
- igd_opregion_pgbase = mem_hole_alloc(2);
- /*
- * Write the the OpRegion offset to give the opregion
- * address to the device model. The device model will trap
- * and map the OpRegion at the give address.
- */
- pci_writel(vga_devfn, PCI_INTEL_OPREGION,
- igd_opregion_pgbase << PAGE_SHIFT);
+ virtual_vga = VGA_pt;
+ gfx_bdf = devfn;
+
+ /* Make vBAR=pBAR */
+ printf("Make vBAR = pBAR of assigned gfx\n");
+ for ( bar = 0; bar < 7; bar++ )
+ {
+ bar_reg = PCI_BASE_ADDRESS_0 + 4*bar;
+ if ( bar == 6 )
+ bar_reg = PCI_ROM_ADDRESS;
+ /* When first time read, it will return physical address */
+ bar_data = pci_readl(devfn, bar_reg);
+ pci_writel(devfn, bar_reg, bar_data);
+
+ /* Now enable the memory or I/O mapping. */
+ cmd = pci_readw(devfn, PCI_COMMAND);
+ if ( (bar_reg == PCI_ROM_ADDRESS) ||
+ ((bar_data & PCI_BASE_ADDRESS_SPACE) ==
+ PCI_BASE_ADDRESS_SPACE_MEMORY) )
+ cmd |= PCI_COMMAND_MEMORY;
+ else
+ cmd |= PCI_COMMAND_IO;
+ cmd |= PCI_COMMAND_MASTER;
+ pci_writew(devfn, PCI_COMMAND, cmd);
}
+
+ /* Map the interrupt. */
+ pin = pci_readb(devfn, PCI_INTERRUPT_PIN);
+ if ( pin != 0 )
+ {
+ /* This is the barber's pole mapping used by Xen. */
+ link = ((pin - 1) + (devfn >> 3)) & 3;
+ isa_irq = pci_readb(PCI_ISA_DEVFN, 0x60 + link);
+ pci_writeb(devfn, PCI_INTERRUPT_LINE, isa_irq);
+ }
+ continue;
+
}
break;
case 0x0680:
Voici les liens des documentations officielles
