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Subject[PATCH v3 6/6] kvm: arm64: Add ACPI support for virt arch timer
Date
From: Fu Wei <fu.wei@linaro.org>

This patch adds ACPI/GTDT support for virt arch timer
using the API in GTDT driver.

Signed-off-by: Fu Wei <fu.wei@linaro.org>
---
virt/kvm/arm/arch_timer.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c
index 0a279d3..4077347 100644
--- a/virt/kvm/arm/arch_timer.c
+++ b/virt/kvm/arm/arch_timer.c
@@ -385,6 +385,9 @@ static int kvm_timer_get_ppi(unsigned int *ppi)
{
struct device_node *np;
int ret = -EINVAL;
+#ifdef CONFIG_ACPI_GTDT
+ struct arch_timer_data data;
+#endif

np = of_find_matching_node(NULL, arch_timer_of_match);
if (!np) {
@@ -397,6 +400,11 @@ static int kvm_timer_get_ppi(unsigned int *ppi)
of_node_put(np);

skip_of:
+#ifdef CONFIG_ACPI_GTDT
+ if (!*ppi && !gtdt_arch_timer_data_init(NULL, &data))
+ *ppi = data.virt_ppi;
+#endif
+
if (*ppi)
return 0;

--
2.5.0
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