Hi Shannon,
On 23/06/16 04:16, Shannon Zhao wrote:
From: Shannon Zhao <shannon.z...@linaro.org>
Construct GTDT table with the interrupt information of timers.
Signed-off-by: Shannon Zhao <shannon.z...@linaro.org>
---
tools/libxl/libxl_arm_acpi.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/tools/libxl/libxl_arm_acpi.c b/tools/libxl/libxl_arm_acpi.c
index d5ffedf..de863f4 100644
--- a/tools/libxl/libxl_arm_acpi.c
+++ b/tools/libxl/libxl_arm_acpi.c
@@ -39,6 +39,9 @@ typedef uint64_t u64;
#define ACPI_BUILD_APPNAME6 "XenARM"
#define ACPI_BUILD_APPNAME4 "Xen "
+#define ACPI_LEVEL_SENSITIVE (u8) 0x00
+#define ACPI_ACTIVE_LOW (u8) 0x01
+
Why did not you include actypes.h rather than define these two defines?
enum {
RSDP,
XSDT,
@@ -110,6 +113,30 @@ static void make_acpi_xsdt(libxl__gc *gc, struct
xc_dom_image *dom)
dom->acpitable_size += ROUNDUP(acpitables[XSDT].size, 3);
}
+static void make_acpi_gtdt(libxl__gc *gc, struct xc_dom_image *dom)
+{
+ struct acpi_table_gtdt *gtdt;
+ size_t size = sizeof(*gtdt);
+
+ gtdt = libxl__zalloc(gc, size);
+
+ gtdt->non_secure_el1_interrupt = GUEST_TIMER_PHYS_NS_PPI;
+ gtdt->non_secure_el1_flags =
+ (ACPI_LEVEL_SENSITIVE << ACPI_GTDT_INTERRUPT_MODE)
+ |(ACPI_ACTIVE_LOW <<
ACPI_GTDT_INTERRUPT_POLARITY);
+ gtdt->virtual_timer_interrupt = GUEST_TIMER_VIRT_PPI;
+ gtdt->virtual_timer_flags =
+ (ACPI_LEVEL_SENSITIVE << ACPI_GTDT_INTERRUPT_MODE)
+ |(ACPI_ACTIVE_LOW <<
ACPI_GTDT_INTERRUPT_POLARITY);
+
+ make_acpi_header(>dt->header, "GTDT", size, 2);
+
+ acpitables[GTDT].table = gtdt;
+ acpitables[GTDT].size = size;
+ /* Align to 64bit. */
+ dom->acpitable_size += ROUNDUP(acpitables[GTDT].size, 3);
I am not sure how ROUNDUP(..., 3) will align to 64-bit.
+}
+
int libxl__prepare_acpi(libxl__gc *gc, libxl_domain_build_info *info,
libxl__domain_build_state *state,
struct xc_dom_image *dom)
@@ -132,6 +159,7 @@ int libxl__prepare_acpi(libxl__gc *gc,
libxl_domain_build_info *info,
make_acpi_rsdp(gc, dom);
make_acpi_xsdt(gc, dom);
+ make_acpi_gtdt(gc, dom);
return 0;
}
Regards,
--
Julien Grall
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