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[Qemu-devel] [PATCH 57/77] ppc: Enforce setting MSR:EE, IR and DR when M
From: |
Benjamin Herrenschmidt |
Subject: |
[Qemu-devel] [PATCH 57/77] ppc: Enforce setting MSR:EE, IR and DR when MSR:PR is set |
Date: |
Wed, 11 Nov 2015 11:28:10 +1100 |
The architecture specifies that any instruction that sets MSR:PR will also
set MSR:EE, IR and DR.
Signed-off-by: Benjamin Herrenschmidt <address@hidden>
---
target-ppc/helper_regs.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/target-ppc/helper_regs.h b/target-ppc/helper_regs.h
index 12af61c..09bc450 100644
--- a/target-ppc/helper_regs.h
+++ b/target-ppc/helper_regs.h
@@ -136,6 +136,10 @@ static inline int hreg_store_msr(CPUPPCState *env,
target_ulong value,
/* Change the exception prefix on PowerPC 601 */
env->excp_prefix = ((value >> MSR_EP) & 1) * 0xFFF00000;
}
+ /* If PR=1 then EE, IR and DR must be 1 */
+ if ((value >> MSR_PR) & 1) {
+ value |= (1 << MSR_EE) | (1 << MSR_DR) | (1 << MSR_IR);
+ }
#endif
env->msr = value;
hreg_compute_hflags(env);
--
2.5.0
- [Qemu-devel] [PATCH 47/77] pci: Don't call pci_irq_handler() for a negative intx, (continued)
- [Qemu-devel] [PATCH 47/77] pci: Don't call pci_irq_handler() for a negative intx, Benjamin Herrenschmidt, 2015/11/10
- [Qemu-devel] [PATCH 46/77] pci: Use the new pci_can_add_device() to enforce devfn_min/max, Benjamin Herrenschmidt, 2015/11/10
- [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 <=
- [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, 2015/11/10
- [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