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[Qemu-ppc] [PATCH 02/10] ppc/xive: Make the PIPR register readonly
From: |
Cédric Le Goater |
Subject: |
[Qemu-ppc] [PATCH 02/10] ppc/xive: Make the PIPR register readonly |
Date: |
Sun, 30 Jun 2019 22:45:53 +0200 |
When the hypervisor (KVM) dispatches a vCPU on a HW thread, it restores
its thread interrupt context. The Pending Interrupt Priority Register
(PIPR) is computed from the Interrupt Pending Buffer (IPB) and stores
should not be allowed to change its value.
Fixes: 207d9fe98510 ("ppc/xive: introduce the XIVE interrupt thread context")
Signed-off-by: Cédric Le Goater <address@hidden>
---
hw/intc/xive.c | 32 ++++++++++++++++----------------
1 file changed, 16 insertions(+), 16 deletions(-)
diff --git a/hw/intc/xive.c b/hw/intc/xive.c
index 3b1f9520ae9f..534f56f86bd5 100644
--- a/hw/intc/xive.c
+++ b/hw/intc/xive.c
@@ -182,31 +182,31 @@ static uint64_t xive_tm_vt_poll(XiveTCTX *tctx, hwaddr
offset, unsigned size)
*/
static const uint8_t xive_tm_hw_view[] = {
- /* QW-0 User */ 3, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0,
- /* QW-1 OS */ 3, 3, 3, 3, 3, 3, 0, 3, 3, 3, 3, 3, 0, 0, 0, 0,
- /* QW-2 POOL */ 0, 0, 3, 3, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0,
- /* QW-3 PHYS */ 3, 3, 3, 3, 0, 3, 0, 3, 3, 0, 0, 3, 3, 3, 3, 0,
+ 3, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0, /* QW-0 User */
+ 3, 3, 3, 3, 3, 3, 0, 2, 3, 3, 3, 3, 0, 0, 0, 0, /* QW-1 OS */
+ 0, 0, 3, 3, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0, /* QW-2 POOL */
+ 3, 3, 3, 3, 0, 3, 0, 2, 3, 0, 0, 3, 3, 3, 3, 0, /* QW-3 PHYS */
};
static const uint8_t xive_tm_hv_view[] = {
- /* QW-0 User */ 3, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0,
- /* QW-1 OS */ 3, 3, 3, 3, 3, 3, 0, 3, 3, 3, 3, 3, 0, 0, 0, 0,
- /* QW-2 POOL */ 0, 0, 3, 3, 0, 0, 0, 0, 0, 3, 3, 3, 0, 0, 0, 0,
- /* QW-3 PHYS */ 3, 3, 3, 3, 0, 3, 0, 3, 3, 0, 0, 3, 0, 0, 0, 0,
+ 3, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0, /* QW-0 User */
+ 3, 3, 3, 3, 3, 3, 0, 2, 3, 3, 3, 3, 0, 0, 0, 0, /* QW-1 OS */
+ 0, 0, 3, 3, 0, 0, 0, 0, 0, 3, 3, 3, 0, 0, 0, 0, /* QW-2 POOL */
+ 3, 3, 3, 3, 0, 3, 0, 2, 3, 0, 0, 3, 0, 0, 0, 0, /* QW-3 PHYS */
};
static const uint8_t xive_tm_os_view[] = {
- /* QW-0 User */ 3, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0,
- /* QW-1 OS */ 2, 3, 2, 2, 2, 2, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0,
- /* QW-2 POOL */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* QW-3 PHYS */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 3, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0, /* QW-0 User */
+ 2, 3, 2, 2, 2, 2, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, /* QW-1 OS */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* QW-2 POOL */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* QW-3 PHYS */
};
static const uint8_t xive_tm_user_view[] = {
- /* QW-0 User */ 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* QW-1 OS */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* QW-2 POOL */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* QW-3 PHYS */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* QW-0 User */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* QW-1 OS */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* QW-2 POOL */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* QW-3 PHYS */
};
/*
--
2.21.0
- [Qemu-ppc] [PATCH 00/10] ppc/pnv: add XIVE support for KVM guests, Cédric Le Goater, 2019/06/30
- [Qemu-ppc] [PATCH 01/10] ppc/xive: Force the Physical CAM line value to group mode, Cédric Le Goater, 2019/06/30
- [Qemu-ppc] [PATCH 02/10] ppc/xive: Make the PIPR register readonly,
Cédric Le Goater <=
- [Qemu-ppc] [PATCH 03/10] ppc/pnv: Rework cache watch model of PnvXIVE, Cédric Le Goater, 2019/06/30
- [Qemu-ppc] [PATCH 04/10] ppc/xive: Fix TM_PULL_POOL_CTX special operation, Cédric Le Goater, 2019/06/30
- [Qemu-ppc] [PATCH 05/10] ppc/xive: Implement TM_PULL_OS_CTX special command, Cédric Le Goater, 2019/06/30
- [Qemu-ppc] [PATCH 06/10] ppc/xive: Provide escalation support, Cédric Le Goater, 2019/06/30
- [Qemu-ppc] [PATCH 09/10] ppc/xive: Synthesize interrupt from the saved IPB in the NVT, Cédric Le Goater, 2019/06/30
- [Qemu-ppc] [PATCH 07/10] ppc/xive: Improve 'info pic' support, Cédric Le Goater, 2019/06/30
- [Qemu-ppc] [PATCH 10/10] ppc/pnv: Dump the XIVE NVT table, Cédric Le Goater, 2019/06/30
- [Qemu-ppc] [PATCH 08/10] ppc/xive: Extend XiveTCTX with an router object pointer, Cédric Le Goater, 2019/06/30