Merge tag 'pull-loongarch-20241016' of https://gitlab.com/gaosong/qemu into staging

pull-loongarch-20241016

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* tag 'pull-loongarch-20241016' of https://gitlab.com/gaosong/qemu:
  hw/loongarch/fw_cfg: Build in common_ss[]
  hw/loongarch/virt: Remove unnecessary 'cpu.h' inclusion
  target/loongarch: Avoid bits shift exceeding width of bool type
  hw/loongarch/virt: Add FDT table support with acpi ged pm register
  acpi: ged: Add macro for acpi sleep control register

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

3 files changed, 43 insertions, 4 deletions

diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c
index 15b4c3ebbf..d00f5a6c1c 100644
--- a/hw/acpi/generic_event_device.c
+++ b/hw/acpi/generic_event_device.c
@@ -201,9 +201,9 @@ static void ged_regs_write(void *opaque, hwaddr addr, uint64_t data,
 
     switch (addr) {
     case ACPI_GED_REG_SLEEP_CTL:
-        slp_typ = (data >> 2) & 0x07;
-        slp_en  = (data >> 5) & 0x01;
-        if (slp_en && slp_typ == 5) {
+        slp_typ = (data >> ACPI_GED_SLP_TYP_POS) & ACPI_GED_SLP_TYP_MASK;
+        slp_en  = !!(data & ACPI_GED_SLP_EN);
+        if (slp_en && slp_typ == ACPI_GED_SLP_TYP_S5) {
             qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
         }
         return;
diff --git a/hw/loongarch/meson.build b/hw/loongarch/meson.build
index bce7ebac97..005f017e21 100644
--- a/hw/loongarch/meson.build
+++ b/hw/loongarch/meson.build
@@ -1,8 +1,8 @@
 loongarch_ss = ss.source_set()
 loongarch_ss.add(files(
-    'fw_cfg.c',
     'boot.c',
 ))
+common_ss.add(when: 'CONFIG_LOONGARCH_VIRT', if_true: files('fw_cfg.c'))
 loongarch_ss.add(when: 'CONFIG_LOONGARCH_VIRT', if_true: files('virt.c'))
 loongarch_ss.add(when: 'CONFIG_ACPI', if_true: files('acpi-build.c'))
 
diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c
index ddd886f69b..9a635d1d3d 100644
--- a/hw/loongarch/virt.c
+++ b/hw/loongarch/virt.c
@@ -280,6 +280,44 @@ static void fdt_add_rtc_node(LoongArchVirtMachineState *lvms,
     g_free(nodename);
 }
 
+static void fdt_add_ged_reset(LoongArchVirtMachineState *lvms)
+{
+    char *name;
+    uint32_t ged_handle;
+    MachineState *ms = MACHINE(lvms);
+    hwaddr base = VIRT_GED_REG_ADDR;
+    hwaddr size = ACPI_GED_REG_COUNT;
+
+    ged_handle = qemu_fdt_alloc_phandle(ms->fdt);
+    name = g_strdup_printf("/ged@%" PRIx64, base);
+    qemu_fdt_add_subnode(ms->fdt, name);
+    qemu_fdt_setprop_string(ms->fdt, name, "compatible", "syscon");
+    qemu_fdt_setprop_cells(ms->fdt, name, "reg", 0x0, base, 0x0, size);
+    /* 8 bit registers */
+    qemu_fdt_setprop_cell(ms->fdt, name, "reg-shift", 0);
+    qemu_fdt_setprop_cell(ms->fdt, name, "reg-io-width", 1);
+    qemu_fdt_setprop_cell(ms->fdt, name, "phandle", ged_handle);
+    ged_handle = qemu_fdt_get_phandle(ms->fdt, name);
+    g_free(name);
+
+    name = g_strdup_printf("/reboot");
+    qemu_fdt_add_subnode(ms->fdt, name);
+    qemu_fdt_setprop_string(ms->fdt, name, "compatible", "syscon-reboot");
+    qemu_fdt_setprop_cell(ms->fdt, name, "regmap", ged_handle);
+    qemu_fdt_setprop_cell(ms->fdt, name, "offset", ACPI_GED_REG_RESET);
+    qemu_fdt_setprop_cell(ms->fdt, name, "value", ACPI_GED_RESET_VALUE);
+    g_free(name);
+
+    name = g_strdup_printf("/poweroff");
+    qemu_fdt_add_subnode(ms->fdt, name);
+    qemu_fdt_setprop_string(ms->fdt, name, "compatible", "syscon-poweroff");
+    qemu_fdt_setprop_cell(ms->fdt, name, "regmap", ged_handle);
+    qemu_fdt_setprop_cell(ms->fdt, name, "offset", ACPI_GED_REG_SLEEP_CTL);
+    qemu_fdt_setprop_cell(ms->fdt, name, "value", ACPI_GED_SLP_EN |
+                          (ACPI_GED_SLP_TYP_S5 << ACPI_GED_SLP_TYP_POS));
+    g_free(name);
+}
+
 static void fdt_add_uart_node(LoongArchVirtMachineState *lvms,
                               uint32_t *pch_pic_phandle, hwaddr base,
                               int irq, bool chosen)
@@ -737,6 +775,7 @@ static void virt_devices_init(DeviceState *pch_pic,
                          qdev_get_gpio_in(pch_pic,
                          VIRT_RTC_IRQ - VIRT_GSI_BASE));
     fdt_add_rtc_node(lvms, pch_pic_phandle);
+    fdt_add_ged_reset(lvms);
 
     /* acpi ged */
     lvms->acpi_ged = create_acpi_ged(pch_pic, lvms);