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[Qemu-devel] [patch 16/18] qemu: initialize hot add system / acpi gpe
From: |
Marcelo Tosatti |
Subject: |
[Qemu-devel] [patch 16/18] qemu: initialize hot add system / acpi gpe |
Date: |
Wed, 04 Feb 2009 11:33:19 -0200 |
User-agent: |
quilt/0.46-1 |
ACPI GPE support, used by PCI (and CPU) hotplug.
From: Glauber Costa <address@hidden>
Signed-off-by: Marcelo Tosatti <address@hidden>
Index: trunk/hw/acpi.c
===================================================================
--- trunk.orig/hw/acpi.c
+++ trunk/hw/acpi.c
@@ -561,3 +561,71 @@ void qemu_system_powerdown(void)
}
}
#endif
+
+#define GPE_BASE 0xafe0
+
+struct gpe_regs {
+ uint16_t sts; /* status */
+ uint16_t en; /* enabled */
+};
+
+static struct gpe_regs gpe;
+
+static uint32_t gpe_readb(void *opaque, uint32_t addr)
+{
+ uint32_t val = 0;
+ struct gpe_regs *g = opaque;
+ switch (addr) {
+ case GPE_BASE:
+ val = g->sts & 0xFF;
+ break;
+ case GPE_BASE + 1:
+ val = (g->sts >> 8) & 0xFF;
+ break;
+ case GPE_BASE + 2:
+ val = g->en & 0xFF;
+ break;
+ case GPE_BASE + 3:
+ val = (g->en >> 8) & 0xFF;
+ break;
+ default:
+ break;
+ }
+
+#if defined(DEBUG)
+ printf("gpe read %lx == %lx\n", addr, val);
+#endif
+ return val;
+}
+
+static void gpe_writeb(void *opaque, uint32_t addr, uint32_t val)
+{
+ struct gpe_regs *g = opaque;
+ switch (addr) {
+ case GPE_BASE:
+ g->sts = (g->sts & ~0xFFFF) | (val & 0xFFFF);
+ break;
+ case GPE_BASE + 1:
+ g->sts = (g->sts & 0xFFFF) | (val << 8);
+ break;
+ case GPE_BASE + 2:
+ g->en = (g->en & ~0xFFFF) | (val & 0xFFFF);
+ break;
+ case GPE_BASE + 3:
+ g->en = (g->en & 0xFFFF) | (val << 8);
+ break;
+ default:
+ break;
+ }
+
+#if defined(DEBUG)
+ printf("gpe write %lx <== %d\n", addr, val);
+#endif
+}
+
+void qemu_system_hot_add_init(void)
+{
+ register_ioport_write(GPE_BASE, 4, 1, gpe_writeb, &gpe);
+ register_ioport_read(GPE_BASE, 4, 1, gpe_readb, &gpe);
+
+}
Index: trunk/hw/pc.c
===================================================================
--- trunk.orig/hw/pc.c
+++ trunk/hw/pc.c
@@ -1010,6 +1010,8 @@ vga_bios_error:
pci_nic_init(pci_bus, nd, -1, "ne2k_pci");
}
+ qemu_system_hot_add_init();
+
if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
fprintf(stderr, "qemu: too many IDE bus\n");
exit(1);
Index: trunk/sysemu.h
===================================================================
--- trunk.orig/sysemu.h
+++ trunk/sysemu.h
@@ -166,6 +166,9 @@ extern int nb_drives_opt;
extern int drive_add(const char *file, const char *fmt, ...);
extern int drive_init(struct drive_opt *arg, int snapshot, void *machine);
+/* acpi */
+void qemu_system_hot_add_init(void);
+
/* serial ports */
#define MAX_SERIAL_PORTS 4
--
- [Qemu-devel] [patch 10/18] qemu: add cpu_unregister_io_memory and make io mem table index dynamic, (continued)
[Qemu-devel] [patch 14/18] qemu: LSI SCSI and e1000 unregister callbacks, Marcelo Tosatti, 2009/02/04
[Qemu-devel] [patch 15/18] qemu: zero ioport_opaque on isa_unassign_ioport, Marcelo Tosatti, 2009/02/04
[Qemu-devel] [patch 16/18] qemu: initialize hot add system / acpi gpe,
Marcelo Tosatti <=
[Qemu-devel] [patch 17/18] qemu: pci hotplug GPE support, Marcelo Tosatti, 2009/02/04
[Qemu-devel] [patch 18/18] qemu: PCI device, disk and host network hot-add / hot-remove, Marcelo Tosatti, 2009/02/04
Re: [Qemu-devel] [patch 18/18] qemu: PCI device, disk and host network hot-add / hot-remove, Paul Brook, 2009/02/04
Re: [Qemu-devel] [patch 18/18] qemu: PCI device, disk and host network hot-add / hot-remove, Markus Armbruster, 2009/02/04
Re: [Qemu-devel] [patch 18/18] qemu: PCI device, disk and host network hot-add / hot-remove, Blue Swirl, 2009/02/04