[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 61/77] ppc: SPURR & PURR are HV writeable and privil
From: |
Benjamin Herrenschmidt |
Subject: |
[Qemu-devel] [PATCH 61/77] ppc: SPURR & PURR are HV writeable and privileged |
Date: |
Wed, 11 Nov 2015 11:28:14 +1100 |
Those are HV writeable, so we provide a dummy write. We eventually need
to provide a better emulation but for now this will get us going.
We also make them non-user readable as per the architecture.
Signed-off-by: Benjamin Herrenschmidt <address@hidden>
---
target-ppc/translate_init.c | 24 ++++++++++++++++--------
1 file changed, 16 insertions(+), 8 deletions(-)
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index e3887e7..e2efdf3 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -293,6 +293,12 @@ static void spr_read_purr (DisasContext *ctx, int gprn,
int sprn)
gen_helper_load_purr(cpu_gpr[gprn], cpu_env);
}
+__attribute__ (( unused ))
+static void spr_write_purr (DisasContext *ctx, int gprn, int sprn)
+{
+ // Temporary placeholder
+}
+
/* HDECR */
static void spr_read_hdecr (DisasContext *ctx, int gprn, int sprn)
{
@@ -7860,14 +7866,16 @@ static void gen_spr_book3s_purr(CPUPPCState *env)
{
#if !defined(CONFIG_USER_ONLY)
/* PURR & SPURR: Hack - treat these as aliases for the TB for now */
- spr_register_kvm(env, SPR_PURR, "PURR",
- &spr_read_purr, SPR_NOACCESS,
- &spr_read_purr, SPR_NOACCESS,
- KVM_REG_PPC_PURR, 0x00000000);
- spr_register_kvm(env, SPR_SPURR, "SPURR",
- &spr_read_purr, SPR_NOACCESS,
- &spr_read_purr, SPR_NOACCESS,
- KVM_REG_PPC_SPURR, 0x00000000);
+ spr_register_kvm_hv(env, SPR_PURR, "PURR",
+ SPR_NOACCESS, SPR_NOACCESS,
+ &spr_read_purr, SPR_NOACCESS,
+ &spr_read_purr, &spr_write_purr,
+ KVM_REG_PPC_PURR, 0x00000000);
+ spr_register_kvm_hv(env, SPR_SPURR, "SPURR",
+ SPR_NOACCESS, SPR_NOACCESS,
+ &spr_read_purr, SPR_NOACCESS,
+ &spr_read_purr, &spr_write_purr,
+ KVM_REG_PPC_SPURR, 0x00000000);
#endif
}
--
2.5.0
- Re: [Qemu-devel] [PATCH 46/77] pci: Use the new pci_can_add_device() to enforce devfn_min/max, (continued)
- [Qemu-devel] [PATCH 42/77] ppc/pnv: Add cut down PSI bridge model and hookup external interrupt, Benjamin Herrenschmidt, 2015/11/10
- [Qemu-devel] [PATCH 51/77] ppc: Use a helper to filter writes to LPCR, Benjamin Herrenschmidt, 2015/11/10
- [Qemu-devel] [PATCH 50/77] ppc: Update LPCR definitions, Benjamin Herrenschmidt, 2015/11/10
- [Qemu-devel] [PATCH 49/77] ppc/pnv: Create a default PCI layout, Benjamin Herrenschmidt, 2015/11/10
- [Qemu-devel] [PATCH 53/77] ppc: Add proper real mode translation support, Benjamin Herrenschmidt, 2015/11/10
- [Qemu-devel] [PATCH 52/77] ppc: Cosmetic, align some comments, Benjamin Herrenschmidt, 2015/11/10
- [Qemu-devel] [PATCH 63/77] ppc: Initialize AMOR in PAPR mode, Benjamin Herrenschmidt, 2015/11/10
- [Qemu-devel] [PATCH 57/77] ppc: Enforce setting MSR:EE, IR and DR when MSR:PR is set, Benjamin Herrenschmidt, 2015/11/10
- [Qemu-devel] [PATCH 54/77] ppc: Fix 64K pages support in full emulation, Benjamin Herrenschmidt, 2015/11/10
- [Qemu-devel] [PATCH 61/77] ppc: SPURR & PURR are HV writeable and privileged,
Benjamin Herrenschmidt <=
- [Qemu-devel] [PATCH 55/77] ppc/pnv+spapr: Add "ibm, pa-features" property to the device-tree, Benjamin Herrenschmidt, 2015/11/10
- [Qemu-devel] [PATCH 56/77] ppc: Fix conditions for delivering external interrupts to a guest, Benjamin Herrenschmidt, 2015/11/10
- [Qemu-devel] [PATCH 58/77] ppc: Initial HDEC support, Benjamin Herrenschmidt, 2015/11/10
- [Qemu-devel] [PATCH 59/77] ppc: Add placeholder SPRs for DPDES and DHDES on P8, Benjamin Herrenschmidt, 2015/11/10
- [Qemu-devel] [PATCH 62/77] ppc: Add dummy SPR_IC for POWER8, Benjamin Herrenschmidt, 2015/11/10
- [Qemu-devel] [PATCH 60/77] ppc: LPCR is a HV resource, Benjamin Herrenschmidt, 2015/11/10
- [Qemu-devel] [PATCH 64/77] ppc: Fix writing to AMR/UAMOR, Benjamin Herrenschmidt, 2015/11/10
- [Qemu-devel] [PATCH 65/77] ppc: Add POWER8 IAMR register, Benjamin Herrenschmidt, 2015/11/10
- [Qemu-devel] [PATCH 72/77] ppc: A couple more dummy POWER8 Book4 regs, Benjamin Herrenschmidt, 2015/11/10
- [Qemu-devel] [PATCH 67/77] ppc: Add dummy write to VTB, Benjamin Herrenschmidt, 2015/11/10