From: David Woodhouse <dwmw2@infradead.org>
To: qemu-devel@nongnu.org
Cc: "Paolo Bonzini" <pbonzini@redhat.com>,
"Paul Durrant" <paul@xen.org>,
"Joao Martins" <joao.m.martins@oracle.com>,
"Ankur Arora" <ankur.a.arora@oracle.com>,
"Philippe Mathieu-Daudé" <philmd@linaro.org>,
"Thomas Huth" <thuth@redhat.com>,
"Alex Bennée" <alex.bennee@linaro.org>,
"Juan Quintela" <quintela@redhat.com>,
"Dr . David Alan Gilbert" <dgilbert@redhat.com>,
"Claudio Fontana" <cfontana@suse.de>,
"Julien Grall" <julien@xen.org>
Subject: [PATCH v6 08/51] xen-platform: allow its creation with XEN_EMULATE mode
Date: Tue, 10 Jan 2023 12:19:59 +0000 [thread overview]
Message-ID: <20230110122042.1562155-9-dwmw2@infradead.org> (raw)
In-Reply-To: <20230110122042.1562155-1-dwmw2@infradead.org>
From: Joao Martins <joao.m.martins@oracle.com>
The only thing we need to handle on KVM side is to change the
pfn from R/W to R/O.
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
---
hw/i386/xen/meson.build | 5 ++++-
hw/i386/xen/xen_platform.c | 39 +++++++++++++++++++++++++-------------
2 files changed, 30 insertions(+), 14 deletions(-)
diff --git a/hw/i386/xen/meson.build b/hw/i386/xen/meson.build
index be84130300..79d75cc927 100644
--- a/hw/i386/xen/meson.build
+++ b/hw/i386/xen/meson.build
@@ -2,6 +2,9 @@ i386_ss.add(when: 'CONFIG_XEN', if_true: files(
'xen-hvm.c',
'xen-mapcache.c',
'xen_apic.c',
- 'xen_platform.c',
'xen_pvdevice.c',
))
+
+i386_ss.add(when: 'CONFIG_XENFV_MACHINE', if_true: files(
+ 'xen_platform.c',
+))
diff --git a/hw/i386/xen/xen_platform.c b/hw/i386/xen/xen_platform.c
index 50174c2269..00f0527b30 100644
--- a/hw/i386/xen/xen_platform.c
+++ b/hw/i386/xen/xen_platform.c
@@ -28,9 +28,9 @@
#include "hw/ide.h"
#include "hw/ide/pci.h"
#include "hw/pci/pci.h"
-#include "hw/xen/xen_common.h"
#include "migration/vmstate.h"
-#include "hw/xen/xen-legacy-backend.h"
+#include "hw/xen/xen.h"
+#include "net/net.h"
#include "trace.h"
#include "sysemu/xen.h"
#include "sysemu/block-backend.h"
@@ -38,6 +38,11 @@
#include "qemu/module.h"
#include "qom/object.h"
+#ifdef CONFIG_XEN
+#include "hw/xen/xen_common.h"
+#include "hw/xen/xen-legacy-backend.h"
+#endif
+
//#define DEBUG_PLATFORM
#ifdef DEBUG_PLATFORM
@@ -280,18 +285,26 @@ static void platform_fixed_ioport_writeb(void *opaque, uint32_t addr, uint32_t v
PCIXenPlatformState *s = opaque;
switch (addr) {
- case 0: /* Platform flags */ {
- hvmmem_type_t mem_type = (val & PFFLAG_ROM_LOCK) ?
- HVMMEM_ram_ro : HVMMEM_ram_rw;
- if (xen_set_mem_type(xen_domid, mem_type, 0xc0, 0x40)) {
- DPRINTF("unable to change ro/rw state of ROM memory area!\n");
- } else {
+ case 0: /* Platform flags */
+ if (xen_mode == XEN_EMULATE) {
+ /* XX: Use i440gx/q35 PAM setup to do this? */
s->flags = val & PFFLAG_ROM_LOCK;
- DPRINTF("changed ro/rw state of ROM memory area. now is %s state.\n",
- (mem_type == HVMMEM_ram_ro ? "ro":"rw"));
+#ifdef CONFIG_XEN
+ } else {
+ hvmmem_type_t mem_type = (val & PFFLAG_ROM_LOCK) ?
+ HVMMEM_ram_ro : HVMMEM_ram_rw;
+
+ if (xen_set_mem_type(xen_domid, mem_type, 0xc0, 0x40)) {
+ DPRINTF("unable to change ro/rw state of ROM memory area!\n");
+ } else {
+ s->flags = val & PFFLAG_ROM_LOCK;
+ DPRINTF("changed ro/rw state of ROM memory area. now is %s state.\n",
+ (mem_type == HVMMEM_ram_ro ? "ro" : "rw"));
+ }
+#endif
}
break;
- }
+
case 2:
log_writeb(s, val);
break;
@@ -509,8 +522,8 @@ static void xen_platform_realize(PCIDevice *dev, Error **errp)
uint8_t *pci_conf;
/* Device will crash on reset if xen is not initialized */
- if (!xen_enabled()) {
- error_setg(errp, "xen-platform device requires the Xen accelerator");
+ if (xen_mode == XEN_DISABLED) {
+ error_setg(errp, "xen-platform device requires a Xen guest");
return;
}
--
2.35.3
next prev parent reply other threads:[~2023-01-10 13:08 UTC|newest]
Thread overview: 94+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-10 12:19 [PATCH v6 00/51] Xen support under KVM David Woodhouse
2023-01-10 12:19 ` [PATCH v6 01/51] include: import Xen public headers to include/standard-headers/ David Woodhouse
2023-01-10 12:19 ` [PATCH v6 02/51] xen: add CONFIG_XENFV_MACHINE and CONFIG_XEN_EMU options for Xen emulation David Woodhouse
2023-01-10 12:19 ` [PATCH v6 03/51] xen: Add XEN_DISABLED mode and make it default David Woodhouse
2023-01-10 12:19 ` [PATCH v6 04/51] i386/kvm: Add xen-version KVM accelerator property and init KVM Xen support David Woodhouse
2023-01-10 12:19 ` [PATCH v6 05/51] i386/kvm: handle Xen HVM cpuid leaves David Woodhouse
2023-01-10 12:19 ` [PATCH v6 06/51] i386/hvm: Set Xen vCPU ID in KVM David Woodhouse
2023-01-10 12:19 ` [PATCH v6 07/51] xen-platform: exclude vfio-pci from the PCI platform unplug David Woodhouse
2023-01-10 12:19 ` David Woodhouse [this message]
2023-01-16 16:20 ` [PATCH v6 08/51] xen-platform: allow its creation with XEN_EMULATE mode Paul Durrant
2023-01-16 17:56 ` David Woodhouse
2023-01-10 12:20 ` [PATCH v6 09/51] i386/xen: handle guest hypercalls David Woodhouse
2023-01-16 16:24 ` Paul Durrant
2023-01-16 17:57 ` David Woodhouse
2023-01-10 12:20 ` [PATCH v6 10/51] i386/xen: implement HYPERVISOR_xen_version David Woodhouse
2023-01-10 12:20 ` [PATCH v6 11/51] i386/xen: implement HYPERVISOR_sched_op, SCHEDOP_shutdown David Woodhouse
2023-01-16 16:27 ` Paul Durrant
2023-01-10 12:20 ` [PATCH v6 12/51] i386/xen: Implement SCHEDOP_poll and SCHEDOP_yield David Woodhouse
2023-01-16 16:36 ` Paul Durrant
2023-01-10 12:20 ` [PATCH v6 13/51] hw/xen: Add xen_overlay device for emulating shared xenheap pages David Woodhouse
2023-01-16 16:57 ` Paul Durrant
2023-01-10 12:20 ` [PATCH v6 14/51] i386/xen: add pc_machine_kvm_type to initialize XEN_EMULATE mode David Woodhouse
2023-01-16 17:17 ` Paul Durrant
2023-01-16 19:45 ` David Woodhouse
2023-01-10 12:20 ` [PATCH v6 15/51] i386/xen: manage and save/restore Xen guest long_mode setting David Woodhouse
2023-01-16 17:20 ` Paul Durrant
2023-01-10 12:20 ` [PATCH v6 16/51] i386/xen: implement HYPERVISOR_memory_op David Woodhouse
2023-01-16 17:28 ` Paul Durrant
2023-01-10 12:20 ` [PATCH v6 17/51] i386/xen: implement XENMEM_add_to_physmap_batch David Woodhouse
2023-01-16 17:36 ` Paul Durrant
2023-01-10 12:20 ` [PATCH v6 18/51] i386/xen: implement HYPERVISOR_hvm_op David Woodhouse
2023-01-16 17:39 ` Paul Durrant
2023-01-10 12:20 ` [PATCH v6 19/51] i386/xen: implement HYPERVISOR_vcpu_op David Woodhouse
2023-01-16 17:40 ` Paul Durrant
2023-01-10 12:20 ` [PATCH v6 20/51] i386/xen: handle VCPUOP_register_vcpu_info David Woodhouse
2023-01-16 17:46 ` Paul Durrant
2023-01-10 12:20 ` [PATCH v6 21/51] i386/xen: handle VCPUOP_register_vcpu_time_info David Woodhouse
2023-01-16 17:53 ` Paul Durrant
2023-01-10 12:20 ` [PATCH v6 22/51] i386/xen: handle VCPUOP_register_runstate_memory_area David Woodhouse
2023-01-16 17:56 ` Paul Durrant
2023-01-10 12:20 ` [PATCH v6 23/51] i386/xen: implement HYPERVISOR_event_channel_op David Woodhouse
2023-01-16 17:59 ` Paul Durrant
2023-01-16 19:54 ` David Woodhouse
2023-01-10 12:20 ` [PATCH v6 24/51] i386/xen: implement HVMOP_set_evtchn_upcall_vector David Woodhouse
2023-01-10 12:20 ` [PATCH v6 25/51] i386/xen: implement HVMOP_set_param David Woodhouse
2023-01-16 18:00 ` Paul Durrant
2023-01-10 12:20 ` [PATCH v6 26/51] hw/xen: Add xen_evtchn device for event channel emulation David Woodhouse
2023-01-10 12:20 ` [PATCH v6 27/51] i386/xen: Add support for Xen event channel delivery to vCPU David Woodhouse
2023-01-10 12:20 ` [PATCH v6 28/51] hw/xen: Implement EVTCHNOP_status David Woodhouse
2023-01-10 12:20 ` [PATCH v6 29/51] hw/xen: Implement EVTCHNOP_close David Woodhouse
2023-01-10 12:20 ` [PATCH v6 30/51] hw/xen: Implement EVTCHNOP_unmask David Woodhouse
2023-01-10 12:20 ` [PATCH v6 31/51] hw/xen: Implement EVTCHNOP_bind_virq David Woodhouse
2023-01-10 12:20 ` [PATCH v6 32/51] hw/xen: Implement EVTCHNOP_bind_ipi David Woodhouse
2023-01-10 12:20 ` [PATCH v6 33/51] hw/xen: Implement EVTCHNOP_send David Woodhouse
2023-01-10 12:20 ` [PATCH v6 34/51] hw/xen: Implement EVTCHNOP_alloc_unbound David Woodhouse
2023-01-10 12:20 ` [PATCH v6 35/51] hw/xen: Implement EVTCHNOP_bind_interdomain David Woodhouse
2023-01-10 12:20 ` [PATCH v6 36/51] hw/xen: Implement EVTCHNOP_bind_vcpu David Woodhouse
2023-01-10 12:20 ` [PATCH v6 37/51] hw/xen: Implement EVTCHNOP_reset David Woodhouse
2023-01-10 12:20 ` [PATCH v6 38/51] i386/xen: add monitor commands to test event injection David Woodhouse
2023-01-11 14:28 ` Dr. David Alan Gilbert
2023-01-11 14:57 ` David Woodhouse
2023-01-10 12:20 ` [PATCH v6 39/51] hw/xen: Support HVM_PARAM_CALLBACK_TYPE_GSI callback David Woodhouse
2023-01-10 12:20 ` [PATCH v6 40/51] hw/xen: Support HVM_PARAM_CALLBACK_TYPE_PCI_INTX callback David Woodhouse
2023-01-10 12:20 ` [PATCH v6 41/51] kvm/i386: Add xen-gnttab-max-frames property David Woodhouse
2023-01-10 12:20 ` [PATCH v6 42/51] hw/xen: Add xen_gnttab device for grant table emulation David Woodhouse
2023-01-10 12:20 ` [PATCH v6 43/51] hw/xen: Support mapping grant frames David Woodhouse
2023-01-10 12:20 ` [PATCH v6 44/51] i386/xen: Implement HYPERVISOR_grant_table_op and GNTTABOP_[gs]et_verson David Woodhouse
2023-01-10 12:20 ` [PATCH v6 45/51] hw/xen: Implement GNTTABOP_query_size David Woodhouse
2023-01-10 12:20 ` [PATCH v6 46/51] i386/xen: handle PV timer hypercalls David Woodhouse
2023-01-10 12:20 ` [PATCH v6 47/51] i386/xen: Reserve Xen special pages for console, xenstore rings David Woodhouse
2023-01-10 12:20 ` [PATCH v6 48/51] i386/xen: handle HVMOP_get_param David Woodhouse
2023-01-10 12:20 ` [PATCH v6 49/51] hw/xen: Add backend implementation of interdomain event channel support David Woodhouse
2023-01-10 12:20 ` [PATCH v6 50/51] hw/xen: Add xen_xenstore device for xenstore emulation David Woodhouse
2023-01-10 12:20 ` [PATCH v6 51/51] hw/xen: Add basic ring handling to xenstore David Woodhouse
2023-01-10 12:37 ` [RFC PATCH v1 00/15] Xen PV backend support for KVM/Xen guests David Woodhouse
2023-01-10 12:37 ` [RFC PATCH v1 01/15] hw/xen: Add evtchn operations to allow redirection to internal emulation David Woodhouse
2023-01-10 12:37 ` [RFC PATCH v1 02/15] hw/xen: Add emulated evtchn ops David Woodhouse
2023-01-10 12:37 ` [RFC PATCH v1 03/15] hw/xen: Add gnttab operations to allow redirection to internal emulation David Woodhouse
2023-01-10 12:37 ` [RFC PATCH v1 04/15] hw/xen: Pass grant ref to gnttab unmap David Woodhouse
2023-01-10 12:37 ` [RFC PATCH v1 05/15] hw/xen: Add foreignmem operations to allow redirection to internal emulation David Woodhouse
2023-01-10 12:37 ` [RFC PATCH v1 06/15] hw/xen: Add xenstore " David Woodhouse
2023-01-10 12:37 ` [RFC PATCH v1 07/15] hw/xen: Move xenstore_store_pv_console_info to xen_console.c David Woodhouse
2023-01-10 12:37 ` [RFC PATCH v1 08/15] hw/xen: Use XEN_PAGE_SIZE in PV backend drivers David Woodhouse
2023-01-10 12:37 ` [RFC PATCH v1 09/15] hw/xen: Rename xen_common.h to xen_native.h David Woodhouse
2023-01-10 12:37 ` [RFC PATCH v1 10/15] hw/xen: Build PV backend drivers for XENFV_MACHINE David Woodhouse
2023-01-10 12:37 ` [RFC PATCH v1 11/15] hw/xen: Map guest XENSTORE_PFN grant in emulated Xenstore David Woodhouse
2023-01-10 12:37 ` [RFC PATCH v1 12/15] hw/xen: Add backend implementation of grant table operations David Woodhouse
2023-01-10 12:37 ` [RFC PATCH v1 13/15] hw/xen: Implement soft reset for emulated gnttab David Woodhouse
2023-01-10 12:37 ` [RFC PATCH v1 14/15] hw/xen: Remove old version of Xen headers David Woodhouse
2023-01-10 12:37 ` [RFC PATCH v1 15/15] i386/xen: Initialize XenBus and legacy backends from pc_init1() David Woodhouse
2023-01-10 15:43 ` [RFC PATCH v1 00/15] Xen PV backend support for KVM/Xen guests Joao Martins
2023-01-10 15:47 ` Joao Martins
2023-01-10 16:52 ` David Woodhouse
2023-01-10 17:26 ` Joao Martins
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