From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: qemu-ppc@nongnu.org
Cc: qemu-devel@nongnu.org
Subject: [Qemu-devel] [PATCH 56/77] ppc: Fix conditions for delivering external interrupts to a guest
Date: Wed, 11 Nov 2015 11:28:09 +1100 [thread overview]
Message-ID: <1447201710-10229-57-git-send-email-benh@kernel.crashing.org> (raw)
In-Reply-To: <1447201710-10229-1-git-send-email-benh@kernel.crashing.org>
External interrupts can bypass the MSR_EE test if they occur in guest
mode and LPES0 is clear. In that case they are directed to the hypervisor
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
target-ppc/excp_helper.c | 19 ++++++++-----------
1 file changed, 8 insertions(+), 11 deletions(-)
diff --git a/target-ppc/excp_helper.c b/target-ppc/excp_helper.c
index 3f77df7..eb65eee 100644
--- a/target-ppc/excp_helper.c
+++ b/target-ppc/excp_helper.c
@@ -795,6 +795,14 @@ static void ppc_hw_interrupt(CPUPPCState *env)
return;
}
}
+ /* Extermal interrupt can ignore MSR:EE under some circumstances */
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_EXT)) {
+ bool lpes0 = !!(env->spr[SPR_LPCR] & LPCR_LPES0);
+ if (msr_ee != 0 || (env->has_hv_mode && msr_hv == 0 && !lpes0)) {
+ powerpc_excp(cpu, env->excp_model, POWERPC_EXCP_EXTERNAL);
+ return;
+ }
+ }
if (msr_ce != 0) {
/* External critical interrupt */
if (env->pending_interrupts & (1 << PPC_INTERRUPT_CEXT)) {
@@ -840,17 +848,6 @@ static void ppc_hw_interrupt(CPUPPCState *env)
powerpc_excp(cpu, env->excp_model, POWERPC_EXCP_DECR);
return;
}
- /* External interrupt */
- if (env->pending_interrupts & (1 << PPC_INTERRUPT_EXT)) {
- /* Taking an external interrupt does not clear the external
- * interrupt status
- */
-#if 0
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_EXT);
-#endif
- powerpc_excp(cpu, env->excp_model, POWERPC_EXCP_EXTERNAL);
- return;
- }
if (env->pending_interrupts & (1 << PPC_INTERRUPT_DOORBELL)) {
env->pending_interrupts &= ~(1 << PPC_INTERRUPT_DOORBELL);
powerpc_excp(cpu, env->excp_model, POWERPC_EXCP_DOORI);
--
2.5.0
next prev parent reply other threads:[~2015-11-11 0:31 UTC|newest]
Thread overview: 198+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-11 0:27 [Qemu-devel] [PATCH 00/77] ppc: Add "native" POWER8 platform Benjamin Herrenschmidt
2015-11-11 0:27 ` [Qemu-devel] [PATCH 01/77] ppc: Remove MMU_MODEn_SUFFIX definitions Benjamin Herrenschmidt
2015-11-11 0:27 ` [Qemu-devel] [PATCH 02/77] ppc: Use split I/D mmu modes to avoid flushes on interrupts Benjamin Herrenschmidt
2015-11-16 4:49 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-16 10:10 ` Benjamin Herrenschmidt
2015-11-16 12:42 ` David Gibson
2015-11-27 10:29 ` Alexander Graf
2015-11-27 12:15 ` Paolo Bonzini
2015-11-11 0:27 ` [Qemu-devel] [PATCH 03/77] ppc: Do some batching of TCG tlb flushes Benjamin Herrenschmidt
2015-11-16 5:00 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-16 10:16 ` Benjamin Herrenschmidt
2015-11-19 6:09 ` David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 04/77] target-ppc: Use sensible POWER8/POWER8E versions Benjamin Herrenschmidt
2015-11-11 0:59 ` [Qemu-devel] [Qemu-ppc] " Stewart Smith
2015-11-16 5:01 ` David Gibson
2015-11-16 10:17 ` Benjamin Herrenschmidt
2015-11-17 0:11 ` Alexey Kardashevskiy
2015-11-17 0:40 ` Benjamin Herrenschmidt
2015-11-11 0:27 ` [Qemu-devel] [PATCH 05/77] ppc: Update SPR definitions Benjamin Herrenschmidt
2015-11-16 5:06 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 06/77] ppc: Add macros to register hypervisor mode SPRs Benjamin Herrenschmidt
2015-11-16 5:09 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 07/77] ppc: Add a bunch of hypervisor SPRs to Book3s Benjamin Herrenschmidt
2015-11-19 6:11 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-19 10:21 ` Benjamin Herrenschmidt
2015-11-11 0:27 ` [Qemu-devel] [PATCH 08/77] ppc: Add number of threads per core to the processor definition Benjamin Herrenschmidt
2015-11-16 5:16 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-20 0:29 ` Benjamin Herrenschmidt
2015-11-11 0:27 ` [Qemu-devel] [PATCH 09/77] ppc: Fix do_rfi() for rfi emulation Benjamin Herrenschmidt
2015-11-19 6:19 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-19 10:23 ` Benjamin Herrenschmidt
2015-11-20 0:26 ` Benjamin Herrenschmidt
2015-11-11 0:27 ` [Qemu-devel] [PATCH 10/77] ppc: Fix hreg_store_msr() so that non-HV mode cannot alter MSR:HV Benjamin Herrenschmidt
2015-11-19 6:20 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 11/77] ppc: Create cpu_ppc_set_papr() helper Benjamin Herrenschmidt
2015-11-16 5:30 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 12/77] ppc: Better figure out if processor has HV mode Benjamin Herrenschmidt
2015-11-19 6:22 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 13/77] ppc: tlbie, tlbia and tlbisync are HV only Benjamin Herrenschmidt
2015-11-16 5:34 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-16 10:21 ` Benjamin Herrenschmidt
2015-11-18 0:06 ` Benjamin Herrenschmidt
2015-11-11 0:27 ` [Qemu-devel] [PATCH 14/77] ppc: Change 'invalid' bit mask of tlbiel and tlbie Benjamin Herrenschmidt
2015-11-20 7:02 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 15/77] ppc: Fix sign extension issue in mtmsr(d) emulation Benjamin Herrenschmidt
2015-11-19 6:26 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-19 10:26 ` Benjamin Herrenschmidt
2015-11-11 0:27 ` [Qemu-devel] [PATCH 16/77] ppc: Get out of emulation on SMT "OR" ops Benjamin Herrenschmidt
2015-11-16 5:40 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 17/77] ppc: Add PPC_64H instruction flag to POWER7 and POWER8 Benjamin Herrenschmidt
2015-11-16 5:41 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 18/77] ppc: Rework POWER7 & POWER8 exception model Benjamin Herrenschmidt
2015-11-19 6:44 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-19 10:31 ` Benjamin Herrenschmidt
2015-11-11 0:27 ` [Qemu-devel] [PATCH 19/77] ppc: Fix POWER7 and POWER8 exception definitions Benjamin Herrenschmidt
2015-11-19 6:46 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 20/77] ppc: Fix generation if ISI/DSI vs. HV mode Benjamin Herrenschmidt
2015-11-19 6:50 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 21/77] ppc: Rework generation of priv and inval interrupts Benjamin Herrenschmidt
2015-11-20 7:45 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-24 0:44 ` Benjamin Herrenschmidt
2015-11-24 2:22 ` David Gibson
2015-11-24 0:51 ` Benjamin Herrenschmidt
2015-11-24 2:22 ` David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 22/77] ppc: Add real mode CI load/store instructions for P7 and P8 Benjamin Herrenschmidt
2015-11-20 7:48 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-24 0:58 ` Benjamin Herrenschmidt
2015-11-11 0:27 ` [Qemu-devel] [PATCH 23/77] ppc: Turn a bunch of booleans from int to bool Benjamin Herrenschmidt
2015-11-20 7:49 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 24/77] ppc: Move exception generation code out of line Benjamin Herrenschmidt
2015-11-20 7:53 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-24 0:59 ` Benjamin Herrenschmidt
2015-11-11 0:27 ` [Qemu-devel] [PATCH 25/77] ppc: Add P7/P8 Power Management instructions Benjamin Herrenschmidt
2015-11-20 8:06 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 26/77] ppc/pnv: Add skeletton PowerNV platform Benjamin Herrenschmidt
2015-11-19 8:58 ` [Qemu-devel] [Qemu-ppc] " Stewart Smith
2015-11-20 8:21 ` David Gibson
2015-11-24 1:45 ` Benjamin Herrenschmidt
2015-11-24 2:43 ` David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 27/77] ppc/pnv: Add XSCOM infrastructure Benjamin Herrenschmidt
2015-11-24 3:20 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-24 8:49 ` Benjamin Herrenschmidt
2015-11-24 8:55 ` Benjamin Herrenschmidt
2015-11-11 0:27 ` [Qemu-devel] [PATCH 28/77] ppc/xics: Rename existing XICS classe to XICS_SPAPR Benjamin Herrenschmidt
2015-11-24 3:25 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 29/77] ppc/xics: Move SPAPR specific code to a separate file Benjamin Herrenschmidt
2015-11-24 3:32 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 30/77] ppc/xics: Implement H_IPOLL using an accessor Benjamin Herrenschmidt
2015-11-11 0:27 ` [Qemu-devel] [PATCH 31/77] ppc/xics: Remove unused xics_set_irq_type() Benjamin Herrenschmidt
2015-11-24 3:34 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 32/77] ppc/xics: Replace "icp" with "xics" in most places Benjamin Herrenschmidt
2015-11-24 3:36 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 33/77] ppc/xics: Make the ICSState a list Benjamin Herrenschmidt
2015-12-01 4:30 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 34/77] ppc/xics: An ICS with offset 0 is assumed to be uninitialized Benjamin Herrenschmidt
2015-12-01 4:40 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 35/77] ppc/xics: Move xics_set_nr_irqs() to xics_spapr.c and xics_kvm.c Benjamin Herrenschmidt
2015-12-01 4:46 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 36/77] ppc/xics: Use a helper to add a new ICS Benjamin Herrenschmidt
2015-12-01 4:47 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 37/77] ppc/xics: Split ICS into base class and "simple" implementation Benjamin Herrenschmidt
2015-12-01 5:13 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 38/77] ppc/xics: Add "native" XICS subclass Benjamin Herrenschmidt
2015-12-01 6:28 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-12-01 6:39 ` David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 39/77] ppc/xics: Add xics to the monitor "info pic" command Benjamin Herrenschmidt
2015-12-01 6:32 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 40/77] ppc/pnv: Wire up XICS native with PowerNV platform Benjamin Herrenschmidt
2015-12-01 6:41 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-11-11 0:27 ` [Qemu-devel] [PATCH 41/77] ppc/pnv: Add LPC controller and hook it up with a UART and RTC Benjamin Herrenschmidt
2015-11-17 0:32 ` Alexey Kardashevskiy
2015-11-17 0:40 ` Benjamin Herrenschmidt
2015-12-01 6:43 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2015-12-02 2:24 ` Alexey Kardashevskiy
2015-12-02 5:29 ` Benjamin Herrenschmidt
2015-12-03 1:04 ` Alexey Kardashevskiy
2015-12-03 1:45 ` David Gibson
2015-12-03 22:58 ` Benjamin Herrenschmidt
2015-12-03 22:54 ` Benjamin Herrenschmidt
2015-11-11 0:27 ` [Qemu-devel] [PATCH 42/77] ppc/pnv: Add cut down PSI bridge model and hookup external interrupt Benjamin Herrenschmidt
2015-11-11 0:27 ` [Qemu-devel] [PATCH 43/77] ppc/pnv: Add OCC model stub with interrupt support Benjamin Herrenschmidt
2015-11-11 0:27 ` [Qemu-devel] [PATCH 44/77] pci-bridge: Set a supported devfn_min for bridge Benjamin Herrenschmidt
2015-11-18 12:31 ` Paolo Bonzini
2015-11-18 12:41 ` [Qemu-devel] [PATCH for-2.5 " Paolo Bonzini
2015-11-18 14:21 ` Michael S. Tsirkin
2015-11-18 14:25 ` Paolo Bonzini
2015-11-18 16:38 ` Michael S. Tsirkin
2015-11-11 0:27 ` [Qemu-devel] [PATCH 45/77] qdev: Add a hook for a bus to device if it can add devices Benjamin Herrenschmidt
2015-11-18 12:34 ` Paolo Bonzini
2015-11-18 20:06 ` Benjamin Herrenschmidt
2015-11-11 0:27 ` [Qemu-devel] [PATCH 46/77] pci: Use the new pci_can_add_device() to enforce devfn_min/max Benjamin Herrenschmidt
2015-11-18 12:35 ` Paolo Bonzini
2015-11-11 0:28 ` [Qemu-devel] [PATCH 47/77] pci: Don't call pci_irq_handler() for a negative intx Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 48/77] ppc/pnv: Add model for Power8 PHB3 PCIe Host bridge Benjamin Herrenschmidt
2017-03-17 8:24 ` [Qemu-devel] [Qemu-ppc] " Cédric Le Goater
2017-03-17 22:15 ` Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 49/77] ppc/pnv: Create a default PCI layout Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 50/77] ppc: Update LPCR definitions Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 51/77] ppc: Use a helper to filter writes to LPCR Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 52/77] ppc: Cosmetic, align some comments Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 53/77] ppc: Add proper real mode translation support Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 54/77] ppc: Fix 64K pages support in full emulation Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 55/77] ppc/pnv+spapr: Add "ibm, pa-features" property to the device-tree Benjamin Herrenschmidt
2015-11-11 0:28 ` Benjamin Herrenschmidt [this message]
2015-11-11 0:28 ` [Qemu-devel] [PATCH 57/77] ppc: Enforce setting MSR:EE, IR and DR when MSR:PR is set Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 58/77] ppc: Initial HDEC support Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 59/77] ppc: Add placeholder SPRs for DPDES and DHDES on P8 Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 60/77] ppc: LPCR is a HV resource Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 61/77] ppc: SPURR & PURR are HV writeable and privileged Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 62/77] ppc: Add dummy SPR_IC for POWER8 Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 63/77] ppc: Initialize AMOR in PAPR mode Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 64/77] ppc: Fix writing to AMR/UAMOR Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 65/77] ppc: Add POWER8 IAMR register Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 66/77] ppc: Add a few more P8 PMU SPRs Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 67/77] ppc: Add dummy write to VTB Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 68/77] ppc: Add dummy POWER8 MPPR register Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 69/77] ppc: Add dummy POWER8 PSPB SPR Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 70/77] ppc: Add dummy CIABR SPR Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 71/77] ppc: Add dummy ACOP SPR Benjamin Herrenschmidt
2016-03-02 20:22 ` Thomas Huth
2015-11-11 0:28 ` [Qemu-devel] [PATCH 72/77] ppc: A couple more dummy POWER8 Book4 regs Benjamin Herrenschmidt
2016-03-02 20:30 ` Thomas Huth
2016-03-04 0:59 ` Benjamin Herrenschmidt
2016-03-09 20:04 ` [Qemu-devel] [Qemu-ppc] " Cédric Le Goater
2016-03-09 21:17 ` Thomas Huth
2016-03-10 18:01 ` Thomas Huth
2016-03-10 22:27 ` Cédric Le Goater
2016-03-11 10:04 ` Thomas Huth
2016-03-11 14:22 ` Cédric Le Goater
2016-03-11 14:46 ` Thomas Huth
2016-03-14 14:53 ` Cédric Le Goater
2016-03-14 15:43 ` Thomas Huth
2016-03-14 15:50 ` Cédric Le Goater
2015-11-11 0:28 ` [Qemu-devel] [PATCH 73/77] ppc: Add KVM numbers to some P8 SPRs Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 74/77] ppc: Print HSRR0/HSRR1 in "info registers" Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 75/77] ppc: Add dummy logmpp instruction Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 76/77] ppc: Add slbfee. instruction Benjamin Herrenschmidt
2015-11-11 0:28 ` [Qemu-devel] [PATCH 77/77] ppc: Fix CFAR updates Benjamin Herrenschmidt
2015-11-11 0:42 ` [Qemu-devel] [Qemu-ppc] [PATCH 00/77] ppc: Add "native" POWER8 platform Benjamin Herrenschmidt
2015-11-11 0:50 ` [Qemu-devel] " Eric Blake
2015-11-11 0:56 ` Benjamin Herrenschmidt
2015-11-11 3:27 ` [Qemu-devel] [Qemu-ppc] " Alexey Kardashevskiy
2015-11-11 3:38 ` Benjamin Herrenschmidt
2015-11-11 4:07 ` Alexey Kardashevskiy
2015-11-11 4:16 ` Benjamin Herrenschmidt
2015-11-11 4:41 ` Alexey Kardashevskiy
2015-11-11 4:47 ` Benjamin Herrenschmidt
2015-11-27 10:21 ` Alexander Graf
2015-11-28 7:59 ` Benjamin Herrenschmidt
2015-11-28 10:53 ` Alexander Graf
2015-11-29 0:38 ` Benjamin Herrenschmidt
2015-11-30 18:15 ` Cédric Le Goater
2015-11-30 20:09 ` Benjamin Herrenschmidt
2015-11-30 21:24 ` Cédric Le Goater
2015-11-30 23:12 ` Benjamin Herrenschmidt
2015-12-07 1:25 ` Stewart Smith
2015-12-07 22:48 ` Cédric Le Goater
2015-11-11 0:57 ` Stewart Smith
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