[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-ppc] [PATCH 35/58] PPC: SPAPR: Use KVM function for time info
From: |
Alexander Graf |
Subject: |
[Qemu-ppc] [PATCH 35/58] PPC: SPAPR: Use KVM function for time info |
Date: |
Wed, 14 Sep 2011 10:42:59 +0200 |
One of the things we can't fake on PPC is the timer speed. So
we need to extract the frequency information from the host and
put it back into the guest device tree.
Luckily, we already have functions for that from the non-pseries
targets, so all we need to do is to connect the dots and the guest
suddenly gets to know its real timer speeds.
Signed-off-by: Alexander Graf <address@hidden>
---
hw/spapr.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/hw/spapr.c b/hw/spapr.c
index c5c9a95..760e323 100644
--- a/hw/spapr.c
+++ b/hw/spapr.c
@@ -140,6 +140,8 @@ static void *spapr_create_fdt_skel(const char *cpu_model,
char *nodename;
uint32_t segs[] = {cpu_to_be32(28), cpu_to_be32(40),
0xffffffff, 0xffffffff};
+ uint32_t tbfreq = kvm_enabled() ? kvmppc_get_tbfreq() : TIMEBASE_FREQ;
+ uint32_t cpufreq = kvm_enabled() ? kvmppc_get_clockfreq() : 1000000000;
if (asprintf(&nodename, "address@hidden", modelname, index) < 0) {
fprintf(stderr, "Allocation failure\n");
@@ -158,10 +160,8 @@ static void *spapr_create_fdt_skel(const char *cpu_model,
env->dcache_line_size)));
_FDT((fdt_property_cell(fdt, "icache-block-size",
env->icache_line_size)));
- _FDT((fdt_property_cell(fdt, "timebase-frequency", TIMEBASE_FREQ)));
- /* Hardcode CPU frequency for now. It's kind of arbitrary on
- * full emu, for kvm we should copy it from the host */
- _FDT((fdt_property_cell(fdt, "clock-frequency", 1000000000)));
+ _FDT((fdt_property_cell(fdt, "timebase-frequency", tbfreq)));
+ _FDT((fdt_property_cell(fdt, "clock-frequency", cpufreq)));
_FDT((fdt_property_cell(fdt, "ibm,slb-size", env->slb_nr)));
_FDT((fdt_property(fdt, "ibm,pft-size",
pft_size_prop, sizeof(pft_size_prop))));
--
1.6.0.2
- [Qemu-ppc] [PATCH 42/58] pseries: use macro for firmware filename, (continued)
- [Qemu-ppc] [PATCH 42/58] pseries: use macro for firmware filename, Alexander Graf, 2011/09/14
- [Qemu-ppc] [PATCH 14/58] device tree: add nop_node, Alexander Graf, 2011/09/14
- [Qemu-ppc] [PATCH 20/58] PPC: KVM: Remove kvmppc_read_host_property, Alexander Graf, 2011/09/14
- [Qemu-ppc] [PATCH 32/58] PPC: Add new target config for pseries, Alexander Graf, 2011/09/14
- [Qemu-ppc] [PATCH 25/58] PPC: E500: Update cpu-release-addr property in cpu nodes, Alexander Graf, 2011/09/14
- [Qemu-ppc] [PATCH 46/58] ppc: booke206: use MAV=2.0 TSIZE definition, fix 4G pages, Alexander Graf, 2011/09/14
- [Qemu-ppc] [PATCH 23/58] PPC: E500: Remove unneeded CPU nodes, Alexander Graf, 2011/09/14
- [Qemu-ppc] [PATCH 35/58] PPC: SPAPR: Use KVM function for time info,
Alexander Graf <=
- [Qemu-ppc] [PATCH 49/58] vscsi: send the CHECK_CONDITION status down together with autosense data, Alexander Graf, 2011/09/14
- [Qemu-ppc] [PATCH 39/58] pseries: More complete WIMG validation in H_ENTER code, Alexander Graf, 2011/09/14
- [Qemu-ppc] [PATCH 30/58] MPC8544DS: Generate CPU nodes on init, Alexander Graf, 2011/09/14
- [Qemu-ppc] [PATCH 26/58] device tree: add add_subnode command, Alexander Graf, 2011/09/14
- [Qemu-ppc] [PATCH 38/58] pseries: interrupt controller should not have a 'reg' property, Alexander Graf, 2011/09/14
- [Qemu-ppc] [PATCH 33/58] KVM: update kernel headers, Alexander Graf, 2011/09/14