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[Qemu-devel] [PATCH v2 04/20] hw/i386/pc: Add the E820Type enum type
From: |
Philippe Mathieu-Daudé |
Subject: |
[Qemu-devel] [PATCH v2 04/20] hw/i386/pc: Add the E820Type enum type |
Date: |
Thu, 13 Jun 2019 16:34:30 +0200 |
This ensure we won't use an incorrect value.
Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
---
v2: Do not cast the enum (Li)
---
hw/i386/pc.c | 4 ++--
include/hw/i386/pc.h | 16 ++++++++++------
2 files changed, 12 insertions(+), 8 deletions(-)
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 5a7cffbb1a..86ba554439 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -872,7 +872,7 @@ static void handle_a20_line_change(void *opaque, int irq,
int level)
x86_cpu_set_a20(cpu, level);
}
-ssize_t e820_add_entry(uint64_t address, uint64_t length, uint32_t type)
+ssize_t e820_add_entry(uint64_t address, uint64_t length, E820Type type)
{
unsigned int index = le32_to_cpu(e820_reserve.count);
struct e820_entry *entry;
@@ -906,7 +906,7 @@ size_t e820_get_num_entries(void)
return e820_entries;
}
-bool e820_get_entry(unsigned int idx, uint32_t type,
+bool e820_get_entry(unsigned int idx, E820Type type,
uint64_t *address, uint64_t *length)
{
if (idx < e820_entries && e820_table[idx].type == cpu_to_le32(type)) {
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index c56116e6f6..7c07185dd5 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -282,12 +282,16 @@ void pc_system_firmware_init(PCMachineState *pcms,
MemoryRegion *rom_memory);
void pc_madt_cpu_entry(AcpiDeviceIf *adev, int uid,
const CPUArchIdList *apic_ids, GArray *entry);
-/* e820 types */
-#define E820_RAM 1
-#define E820_RESERVED 2
-#define E820_ACPI 3
-#define E820_NVS 4
-#define E820_UNUSABLE 5
+/**
+ * E820Type: Type of the e820 address range.
+ */
+typedef enum {
+ E820_RAM = 1,
+ E820_RESERVED = 2,
+ E820_ACPI = 3,
+ E820_NVS = 4,
+ E820_UNUSABLE = 5
+} E820Type;
ssize_t e820_add_entry(uint64_t, uint64_t, uint32_t);
size_t e820_get_num_entries(void);
--
2.20.1
- [Qemu-devel] [PATCH v2 00/20] hw/i386/pc: Do not restrict the fw_cfg functions to the PC machine, Philippe Mathieu-Daudé, 2019/06/13
- [Qemu-devel] [PATCH v2 05/20] hw/i386/pc: Add documentation to the e820_*() functions, Philippe Mathieu-Daudé, 2019/06/13
- [Qemu-devel] [PATCH v2 06/20] hw/i386/pc: Use e820_get_num_entries() to access e820_entries, Philippe Mathieu-Daudé, 2019/06/13
- [Qemu-devel] [PATCH v2 01/20] hw/i386/pc: Use unsigned type to index arrays, Philippe Mathieu-Daudé, 2019/06/13
- [Qemu-devel] [PATCH v2 04/20] hw/i386/pc: Add the E820Type enum type,
Philippe Mathieu-Daudé <=
- [Qemu-devel] [PATCH v2 08/20] hw/i386/pc: Use address_space_memory in place, Philippe Mathieu-Daudé, 2019/06/13
- [Qemu-devel] [PATCH v2 02/20] hw/i386/pc: Use size_t type to hold/return a size of array, Philippe Mathieu-Daudé, 2019/06/13
- [Qemu-devel] [PATCH v2 03/20] hw/i386/pc: Let e820_add_entry() return a ssize_t type, Philippe Mathieu-Daudé, 2019/06/13
- [Qemu-devel] [PATCH v2 07/20] hw/i386/pc: Extract e820 memory layout code, Philippe Mathieu-Daudé, 2019/06/13
- [Qemu-devel] [PATCH v2 11/20] hw/i386/pc: Pass the apic_id_limit value by argument, Philippe Mathieu-Daudé, 2019/06/13