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[Qemu-ppc] [PULL 16/48] target/ppc: Add ibm, processor-radix-AP-encoding
From: |
David Gibson |
Subject: |
[Qemu-ppc] [PULL 16/48] target/ppc: Add ibm, processor-radix-AP-encodings for TCG |
Date: |
Wed, 26 Apr 2017 17:00:02 +1000 |
From: Suraj Jitindar Singh <address@hidden>
The ibm,processor-radix-AP-encodings device tree property of the cpu node
is used to specify the radix mode supported page sizes of the processor
to the guest os. Contained in the top 3 bits of the msb is the actual
page size (AP) encoding associated with the corresponding radix mode
supported page size. Add this property for a TCG guest, note the TCG code
is capable of translating any format so just add the 4 default page sizes.
The ibm,processor-radix-AP-encodings device tree property is defined as:
One to n cells in ascending order of radix mode supported page sizes
encoded as BE ints (32bit on ppc) in the form:
0bxxxyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
- 0bxxx -> AP encoding
- 0byyyyyyyyyyyyyyyyyyyyyyyyyyyyy -> supported page size encoded as a shift
Signed-off-by: Suraj Jitindar Singh <address@hidden>
Signed-off-by: David Gibson <address@hidden>
---
target/ppc/translate_init.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/target/ppc/translate_init.c b/target/ppc/translate_init.c
index c1a9014..aa0c44d 100644
--- a/target/ppc/translate_init.c
+++ b/target/ppc/translate_init.c
@@ -8808,6 +8808,25 @@ POWERPC_FAMILY(POWER8)(ObjectClass *oc, void *data)
pcc->interrupts_big_endian = ppc_cpu_interrupts_big_endian_lpcr;
}
+#ifdef CONFIG_SOFTMMU
+/*
+ * Radix pg sizes and AP encodings for dt node ibm,processor-radix-AP-encodings
+ * Encoded as array of int_32s in the form:
+ * 0bxxxyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
+ * x -> AP encoding
+ * y -> radix mode supported page size (encoded as a shift)
+ */
+static struct ppc_radix_page_info POWER9_radix_page_info = {
+ .count = 4,
+ .entries = {
+ 0x0000000c, /* 4K - enc: 0x0 */
+ 0xa0000010, /* 64K - enc: 0x5 */
+ 0x20000015, /* 2M - enc: 0x1 */
+ 0x4000001e /* 1G - enc: 0x2 */
+ }
+};
+#endif /* CONFIG_SOFTMMU */
+
static void init_proc_POWER9(CPUPPCState *env)
{
/* Common Registers */
@@ -8959,6 +8978,7 @@ POWERPC_FAMILY(POWER9)(ObjectClass *oc, void *data)
pcc->handle_mmu_fault = ppc64_v3_handle_mmu_fault;
/* segment page size remain the same */
pcc->sps = &POWER7_POWER8_sps;
+ pcc->radix_page_info = &POWER9_radix_page_info;
#endif
pcc->excp_model = POWERPC_EXCP_POWER8;
pcc->bus_model = PPC_FLAGS_INPUT_POWER7;
--
2.9.3
- [Qemu-ppc] [PULL 38/48] ppc/pnv: scan ISA bus to populate device tree, (continued)
- [Qemu-ppc] [PULL 38/48] ppc/pnv: scan ISA bus to populate device tree, David Gibson, 2017/04/26
- [Qemu-ppc] [PULL 23/48] ppc/pnv: extend the machine with a InterruptStatsProvider interface, David Gibson, 2017/04/26
- [Qemu-ppc] [PULL 40/48] ppc/pnv: populate device tree for serial devices, David Gibson, 2017/04/26
- [Qemu-ppc] [PULL 28/48] ppc/pnv: Add OCC model stub with interrupt support, David Gibson, 2017/04/26
- [Qemu-ppc] [PULL 45/48] target/ppc: Flush TLB on write to PIDR, David Gibson, 2017/04/26
- [Qemu-ppc] [PULL 07/48] target-ppc: support KVM_CAP_PPC_MMU_RADIX, KVM_CAP_PPC_MMU_HASH_V3, David Gibson, 2017/04/26
- [Qemu-ppc] [PULL 22/48] ppc/pnv: extend the machine with a XICSFabric interface, David Gibson, 2017/04/26
- [Qemu-ppc] [PULL 25/48] ppc/pnv: add a helper to calculate MMIO addresses registers, David Gibson, 2017/04/26
- [Qemu-ppc] [PULL 19/48] spapr: allocate the ICPState object from under sPAPRCPUCore, David Gibson, 2017/04/26
- [Qemu-ppc] [PULL 14/48] spapr_pci: Warn when RAM page size is not enabled in IOMMU page mask, David Gibson, 2017/04/26
- [Qemu-ppc] [PULL 16/48] target/ppc: Add ibm, processor-radix-AP-encodings for TCG,
David Gibson <=
- [Qemu-ppc] [PULL 09/48] target/ppc: Implement H_REGISTER_PROCESS_TABLE H_CALL, David Gibson, 2017/04/26
- [Qemu-ppc] [PULL 29/48] ppc: add IPMI support, David Gibson, 2017/04/26
- [Qemu-ppc] [PULL 15/48] spapr_pci: Removed unused include, David Gibson, 2017/04/26
- [Qemu-ppc] [PULL 13/48] target-ppc/kvm: Enable in-kernel TCE acceleration for multi-tce, David Gibson, 2017/04/26
- [Qemu-ppc] [PULL 31/48] ipmi: provide support for FRUs, David Gibson, 2017/04/26
- [Qemu-ppc] [PULL 41/48] ppc/pnv: populate device tree for IPMI BT devices, David Gibson, 2017/04/26
- [Qemu-ppc] [PULL 39/48] ppc/pnv: populate device tree for RTC devices, David Gibson, 2017/04/26
- [Qemu-ppc] [PULL 48/48] MAINTAINERS: Remove myself from e500, David Gibson, 2017/04/26
- [Qemu-ppc] [PULL 05/48] target-ppc: kvm: make use of KVM_CREATE_SPAPR_TCE_64, David Gibson, 2017/04/26
- [Qemu-ppc] [PULL 35/48] spapr: remove the 'nr_servers' field from the machine, David Gibson, 2017/04/26