From: David Gibson <david@gibson.dropbear.id.au>
To: "Cédric Le Goater" <clg@kaod.org>
Cc: kvm@vger.kernel.org, kvm-ppc@vger.kernel.org,
Paul Mackerras <paulus@samba.org>,
linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH 04/19] KVM: PPC: Book3S HV: export services for the XIVE native exploitation device
Date: Fri, 11 Jan 2019 15:09:57 +1100 [thread overview]
Message-ID: <20190111040957.GA1927@umbus.fritz.box> (raw)
In-Reply-To: <20190107184331.8429-5-clg@kaod.org>
[-- Attachment #1: Type: text/plain, Size: 8687 bytes --]
On Mon, Jan 07, 2019 at 07:43:16PM +0100, Cédric Le Goater wrote:
> The KVM device for the XIVE native exploitation mode will reuse the
> structures of the XICS-over-XIVE glue implementation. Some code will
> also be shared : source block creation and destruction, target
> selection and escalation attachment.
>
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
> ---
> arch/powerpc/kvm/book3s_xive.h | 11 +++++
> arch/powerpc/kvm/book3s_xive.c | 89 +++++++++++++++++++---------------
> 2 files changed, 62 insertions(+), 38 deletions(-)
>
> diff --git a/arch/powerpc/kvm/book3s_xive.h b/arch/powerpc/kvm/book3s_xive.h
> index a08ae6fd4c51..10c4aa5cd010 100644
> --- a/arch/powerpc/kvm/book3s_xive.h
> +++ b/arch/powerpc/kvm/book3s_xive.h
> @@ -248,5 +248,16 @@ extern int (*__xive_vm_h_ipi)(struct kvm_vcpu *vcpu, unsigned long server,
> extern int (*__xive_vm_h_cppr)(struct kvm_vcpu *vcpu, unsigned long cppr);
> extern int (*__xive_vm_h_eoi)(struct kvm_vcpu *vcpu, unsigned long xirr);
>
> +/*
> + * Common Xive routines for XICS-over-XIVE and XIVE native
> + */
> +struct kvmppc_xive_src_block *kvmppc_xive_create_src_block(
> + struct kvmppc_xive *xive, int irq);
> +void kvmppc_xive_free_sources(struct kvmppc_xive_src_block *sb);
> +int kvmppc_xive_select_target(struct kvm *kvm, u32 *server, u8 prio);
> +void kvmppc_xive_disable_vcpu_interrupts(struct kvm_vcpu *vcpu);
> +int kvmppc_xive_attach_escalation(struct kvm_vcpu *vcpu, u8 prio);
> +int kvmppc_xive_debug_show_queues(struct seq_file *m, struct kvm_vcpu *vcpu);
> +
> #endif /* CONFIG_KVM_XICS */
> #endif /* _KVM_PPC_BOOK3S_XICS_H */
> diff --git a/arch/powerpc/kvm/book3s_xive.c b/arch/powerpc/kvm/book3s_xive.c
> index 8a4fa45f07f8..bb5d32f7e4e6 100644
> --- a/arch/powerpc/kvm/book3s_xive.c
> +++ b/arch/powerpc/kvm/book3s_xive.c
> @@ -166,7 +166,7 @@ static irqreturn_t xive_esc_irq(int irq, void *data)
> return IRQ_HANDLED;
> }
>
> -static int xive_attach_escalation(struct kvm_vcpu *vcpu, u8 prio)
> +int kvmppc_xive_attach_escalation(struct kvm_vcpu *vcpu, u8 prio)
> {
> struct kvmppc_xive_vcpu *xc = vcpu->arch.xive_vcpu;
> struct xive_q *q = &xc->queues[prio];
> @@ -291,7 +291,7 @@ static int xive_check_provisioning(struct kvm *kvm, u8 prio)
> continue;
> rc = xive_provision_queue(vcpu, prio);
> if (rc == 0 && !xive->single_escalation)
> - xive_attach_escalation(vcpu, prio);
> + kvmppc_xive_attach_escalation(vcpu, prio);
> if (rc)
> return rc;
> }
> @@ -342,7 +342,7 @@ static int xive_try_pick_queue(struct kvm_vcpu *vcpu, u8 prio)
> return atomic_add_unless(&q->count, 1, max) ? 0 : -EBUSY;
> }
>
> -static int xive_select_target(struct kvm *kvm, u32 *server, u8 prio)
> +int kvmppc_xive_select_target(struct kvm *kvm, u32 *server, u8 prio)
> {
> struct kvm_vcpu *vcpu;
> int i, rc;
> @@ -535,7 +535,7 @@ static int xive_target_interrupt(struct kvm *kvm,
> * priority. The count for that new target will have
> * already been incremented.
> */
> - rc = xive_select_target(kvm, &server, prio);
> + rc = kvmppc_xive_select_target(kvm, &server, prio);
>
> /*
> * We failed to find a target ? Not much we can do
> @@ -1055,7 +1055,7 @@ int kvmppc_xive_clr_mapped(struct kvm *kvm, unsigned long guest_irq,
> }
> EXPORT_SYMBOL_GPL(kvmppc_xive_clr_mapped);
>
> -static void kvmppc_xive_disable_vcpu_interrupts(struct kvm_vcpu *vcpu)
> +void kvmppc_xive_disable_vcpu_interrupts(struct kvm_vcpu *vcpu)
> {
> struct kvmppc_xive_vcpu *xc = vcpu->arch.xive_vcpu;
> struct kvm *kvm = vcpu->kvm;
> @@ -1225,7 +1225,7 @@ int kvmppc_xive_connect_vcpu(struct kvm_device *dev,
> if (xive->qmap & (1 << i)) {
> r = xive_provision_queue(vcpu, i);
> if (r == 0 && !xive->single_escalation)
> - xive_attach_escalation(vcpu, i);
> + kvmppc_xive_attach_escalation(vcpu, i);
> if (r)
> goto bail;
> } else {
> @@ -1240,7 +1240,7 @@ int kvmppc_xive_connect_vcpu(struct kvm_device *dev,
> }
>
> /* If not done above, attach priority 0 escalation */
> - r = xive_attach_escalation(vcpu, 0);
> + r = kvmppc_xive_attach_escalation(vcpu, 0);
> if (r)
> goto bail;
>
> @@ -1491,8 +1491,8 @@ static int xive_get_source(struct kvmppc_xive *xive, long irq, u64 addr)
> return 0;
> }
>
> -static struct kvmppc_xive_src_block *xive_create_src_block(struct kvmppc_xive *xive,
> - int irq)
> +struct kvmppc_xive_src_block *kvmppc_xive_create_src_block(
> + struct kvmppc_xive *xive, int irq)
> {
> struct kvm *kvm = xive->kvm;
> struct kvmppc_xive_src_block *sb;
> @@ -1571,7 +1571,7 @@ static int xive_set_source(struct kvmppc_xive *xive, long irq, u64 addr)
> sb = kvmppc_xive_find_source(xive, irq, &idx);
> if (!sb) {
> pr_devel("No source, creating source block...\n");
> - sb = xive_create_src_block(xive, irq);
> + sb = kvmppc_xive_create_src_block(xive, irq);
> if (!sb) {
> pr_devel("Failed to create block...\n");
> return -ENOMEM;
> @@ -1795,7 +1795,7 @@ static void kvmppc_xive_cleanup_irq(u32 hw_num, struct xive_irq_data *xd)
> xive_cleanup_irq_data(xd);
> }
>
> -static void kvmppc_xive_free_sources(struct kvmppc_xive_src_block *sb)
> +void kvmppc_xive_free_sources(struct kvmppc_xive_src_block *sb)
> {
> int i;
>
> @@ -1824,6 +1824,8 @@ static void kvmppc_xive_free(struct kvm_device *dev)
>
> debugfs_remove(xive->dentry);
>
> + pr_devel("Destroying xive for partition\n");
> +
> if (kvm)
> kvm->arch.xive = NULL;
>
> @@ -1889,6 +1891,43 @@ static int kvmppc_xive_create(struct kvm_device *dev, u32 type)
> return 0;
> }
>
> +int kvmppc_xive_debug_show_queues(struct seq_file *m, struct kvm_vcpu *vcpu)
> +{
> + struct kvmppc_xive_vcpu *xc = vcpu->arch.xive_vcpu;
> + unsigned int i;
> +
> + for (i = 0; i < KVMPPC_XIVE_Q_COUNT; i++) {
> + struct xive_q *q = &xc->queues[i];
> + u32 i0, i1, idx;
> +
> + if (!q->qpage && !xc->esc_virq[i])
> + continue;
> +
> + seq_printf(m, " [q%d]: ", i);
> +
> + if (q->qpage) {
> + idx = q->idx;
> + i0 = be32_to_cpup(q->qpage + idx);
> + idx = (idx + 1) & q->msk;
> + i1 = be32_to_cpup(q->qpage + idx);
> + seq_printf(m, "T=%d %08x %08x...\n", q->toggle,
> + i0, i1);
> + }
> + if (xc->esc_virq[i]) {
> + struct irq_data *d = irq_get_irq_data(xc->esc_virq[i]);
> + struct xive_irq_data *xd =
> + irq_data_get_irq_handler_data(d);
> + u64 pq = xive_vm_esb_load(xd, XIVE_ESB_GET);
> +
> + seq_printf(m, "E:%c%c I(%d:%llx:%llx)",
> + (pq & XIVE_ESB_VAL_P) ? 'P' : 'p',
> + (pq & XIVE_ESB_VAL_Q) ? 'Q' : 'q',
> + xc->esc_virq[i], pq, xd->eoi_page);
> + seq_puts(m, "\n");
> + }
> + }
> + return 0;
> +}
>
> static int xive_debug_show(struct seq_file *m, void *private)
> {
> @@ -1914,7 +1953,6 @@ static int xive_debug_show(struct seq_file *m, void *private)
>
> kvm_for_each_vcpu(i, vcpu, kvm) {
> struct kvmppc_xive_vcpu *xc = vcpu->arch.xive_vcpu;
> - unsigned int i;
>
> if (!xc)
> continue;
> @@ -1924,33 +1962,8 @@ static int xive_debug_show(struct seq_file *m, void *private)
> xc->server_num, xc->cppr, xc->hw_cppr,
> xc->mfrr, xc->pending,
> xc->stat_rm_h_xirr, xc->stat_vm_h_xirr);
> - for (i = 0; i < KVMPPC_XIVE_Q_COUNT; i++) {
> - struct xive_q *q = &xc->queues[i];
> - u32 i0, i1, idx;
>
> - if (!q->qpage && !xc->esc_virq[i])
> - continue;
> -
> - seq_printf(m, " [q%d]: ", i);
> -
> - if (q->qpage) {
> - idx = q->idx;
> - i0 = be32_to_cpup(q->qpage + idx);
> - idx = (idx + 1) & q->msk;
> - i1 = be32_to_cpup(q->qpage + idx);
> - seq_printf(m, "T=%d %08x %08x... \n", q->toggle, i0, i1);
> - }
> - if (xc->esc_virq[i]) {
> - struct irq_data *d = irq_get_irq_data(xc->esc_virq[i]);
> - struct xive_irq_data *xd = irq_data_get_irq_handler_data(d);
> - u64 pq = xive_vm_esb_load(xd, XIVE_ESB_GET);
> - seq_printf(m, "E:%c%c I(%d:%llx:%llx)",
> - (pq & XIVE_ESB_VAL_P) ? 'P' : 'p',
> - (pq & XIVE_ESB_VAL_Q) ? 'Q' : 'q',
> - xc->esc_virq[i], pq, xd->eoi_page);
> - seq_printf(m, "\n");
> - }
> - }
> + kvmppc_xive_debug_show_queues(m, vcpu);
>
> t_rm_h_xirr += xc->stat_rm_h_xirr;
> t_rm_h_ipoll += xc->stat_rm_h_ipoll;
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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next prev parent reply other threads:[~2019-01-11 4:51 UTC|newest]
Thread overview: 135+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-07 18:43 [PATCH 00/19] KVM: PPC: Book3S HV: add XIVE native exploitation mode Cédric Le Goater
2019-01-07 18:43 ` [PATCH 01/19] powerpc/xive: export flags for the XIVE native exploitation mode hcalls Cédric Le Goater
2019-01-09 3:33 ` David Gibson
2019-01-09 13:08 ` Michael Ellerman
2019-01-09 13:38 ` Cédric Le Goater
2019-01-07 18:43 ` [PATCH 02/19] powerpc/xive: add OPAL extensions for the XIVE native exploitation support Cédric Le Goater
2019-01-09 4:26 ` David Gibson
2019-01-07 18:43 ` [PATCH 03/19] KVM: PPC: Book3S HV: check the IRQ controller type Cédric Le Goater
2019-01-09 4:27 ` David Gibson
2019-01-22 4:56 ` Paul Mackerras
2019-01-23 16:24 ` Cédric Le Goater
2019-02-04 0:50 ` David Gibson
2019-02-04 10:16 ` Cédric Le Goater
2019-01-07 18:43 ` [PATCH 04/19] KVM: PPC: Book3S HV: export services for the XIVE native exploitation device Cédric Le Goater
2019-01-11 4:09 ` David Gibson [this message]
2019-01-07 18:43 ` [PATCH 05/19] KVM: PPC: Book3S HV: add a new KVM device for the XIVE native exploitation mode Cédric Le Goater
2019-01-22 5:05 ` Paul Mackerras
2019-01-23 16:28 ` Cédric Le Goater
2019-01-28 17:35 ` Cédric Le Goater
2019-01-30 4:29 ` Paul Mackerras
2019-01-30 7:01 ` Cédric Le Goater
2019-01-31 3:01 ` Paul Mackerras
2019-02-01 17:03 ` Cédric Le Goater
2019-02-04 4:25 ` David Gibson
2019-02-04 11:19 ` Cédric Le Goater
2019-02-05 5:26 ` David Gibson
2019-01-07 18:43 ` [PATCH 06/19] KVM: PPC: Book3S HV: add a GET_ESB_FD control to the XIVE native device Cédric Le Goater
2019-01-22 5:09 ` Paul Mackerras
2019-01-23 16:48 ` Cédric Le Goater
2019-02-04 4:45 ` David Gibson
2019-02-04 11:30 ` Cédric Le Goater
2019-02-05 5:28 ` David Gibson
2019-02-05 12:55 ` Cédric Le Goater
2019-02-06 1:23 ` David Gibson
2019-02-06 7:21 ` Cédric Le Goater
2019-02-07 2:49 ` David Gibson
2019-02-07 9:03 ` Cédric Le Goater
2019-02-08 5:15 ` David Gibson
2019-02-08 7:58 ` Cédric Le Goater
2019-02-08 21:53 ` Paul Mackerras
2019-02-09 9:41 ` Cédric Le Goater
2019-02-11 2:38 ` David Gibson
2019-02-11 6:42 ` Benjamin Herrenschmidt
2019-02-12 22:07 ` Cédric Le Goater
2019-01-07 18:43 ` [PATCH 07/19] KVM: PPC: Book3S HV: add a GET_TIMA_FD control to " Cédric Le Goater
2019-01-07 18:43 ` [PATCH 08/19] KVM: PPC: Book3S HV: add a VC_BASE control to the " Cédric Le Goater
2019-01-22 5:14 ` Paul Mackerras
2019-01-23 16:56 ` Cédric Le Goater
2019-02-04 4:49 ` David Gibson
2019-02-04 15:36 ` Cédric Le Goater
2019-01-07 18:43 ` [PATCH 09/19] KVM: PPC: Book3S HV: add a SET_SOURCE " Cédric Le Goater
2019-02-04 4:57 ` David Gibson
2019-02-04 19:07 ` Cédric Le Goater
2019-02-05 5:35 ` David Gibson
2019-02-05 13:39 ` Cédric Le Goater
2019-01-07 18:43 ` [PATCH 10/19] KVM: PPC: Book3S HV: add a EISN attribute to kvmppc_xive_irq_state Cédric Le Goater
2019-01-07 18:43 ` [PATCH 11/19] KVM: PPC: Book3S HV: add support for the XIVE native exploitation mode hcalls Cédric Le Goater
2019-01-22 5:23 ` Paul Mackerras
2019-01-23 6:44 ` Benjamin Herrenschmidt
2019-01-23 8:48 ` Cédric Le Goater
2019-01-23 10:26 ` Paul Mackerras
2019-01-23 10:48 ` Cédric Le Goater
2019-01-23 21:23 ` Benjamin Herrenschmidt
2019-01-07 18:43 ` [PATCH 12/19] KVM: PPC: Book3S HV: record guest queue page address Cédric Le Goater
2019-02-04 5:15 ` David Gibson
2019-02-04 15:37 ` Cédric Le Goater
2019-01-07 18:43 ` [PATCH 13/19] KVM: PPC: Book3S HV: add a SYNC control for the XIVE native migration Cédric Le Goater
2019-02-04 5:17 ` David Gibson
2019-02-04 15:39 ` Cédric Le Goater
2019-01-07 18:43 ` [PATCH 14/19] KVM: PPC: Book3S HV: add a control to make the XIVE EQ pages dirty Cédric Le Goater
2019-02-04 5:18 ` David Gibson
2019-02-04 15:46 ` Cédric Le Goater
2019-02-05 5:30 ` David Gibson
2019-01-07 18:43 ` [PATCH 15/19] KVM: PPC: Book3S HV: add get/set accessors for the source configuration Cédric Le Goater
2019-02-04 5:21 ` David Gibson
2019-02-04 16:07 ` Cédric Le Goater
2019-02-05 5:32 ` David Gibson
2019-02-05 13:03 ` Cédric Le Goater
2019-02-06 1:23 ` David Gibson
2019-02-06 1:24 ` David Gibson
2019-02-06 7:07 ` Cédric Le Goater
2019-02-07 2:48 ` David Gibson
2019-02-07 9:13 ` Cédric Le Goater
2019-02-08 5:15 ` David Gibson
2019-02-14 16:50 ` Cédric Le Goater
2019-01-07 18:43 ` [PATCH 16/19] KVM: PPC: Book3S HV: add get/set accessors for the EQ configuration Cédric Le Goater
2019-02-04 5:24 ` David Gibson
2019-02-05 17:45 ` Cédric Le Goater
2019-01-07 19:10 ` [PATCH 17/19] KVM: PPC: Book3S HV: add get/set accessors for the VP XIVE state Cédric Le Goater
2019-01-07 19:10 ` [PATCH 18/19] KVM: PPC: Book3S HV: add passthrough support Cédric Le Goater
2019-01-22 5:26 ` Paul Mackerras
2019-01-23 6:45 ` Benjamin Herrenschmidt
2019-01-23 10:30 ` Paul Mackerras
2019-01-23 11:07 ` Cédric Le Goater
2019-01-28 6:13 ` Paul Mackerras
2019-01-28 18:26 ` Cédric Le Goater
2019-01-29 2:45 ` Paul Mackerras
2019-01-29 13:47 ` Cédric Le Goater
2019-01-30 6:20 ` Paul Mackerras
2019-01-30 15:54 ` Cédric Le Goater
2019-01-31 2:48 ` Paul Mackerras
2019-01-29 4:12 ` Paul Mackerras
2019-01-29 17:44 ` Cédric Le Goater
2019-01-30 5:55 ` Paul Mackerras
2019-01-30 7:06 ` Cédric Le Goater
2019-01-23 21:25 ` Benjamin Herrenschmidt
2019-01-24 8:41 ` Cédric Le Goater
2019-01-28 4:43 ` Paul Mackerras
2019-01-29 13:46 ` Cédric Le Goater
2019-01-07 19:10 ` [PATCH 19/19] KVM: introduce a KVM_DELETE_DEVICE ioctl Cédric Le Goater
2019-01-22 5:42 ` Paul Mackerras
2019-01-23 18:39 ` Cédric Le Goater
2019-01-23 21:32 ` Benjamin Herrenschmidt
2019-02-04 5:26 ` [PATCH 17/19] KVM: PPC: Book3S HV: add get/set accessors for the VP XIVE state David Gibson
2019-02-04 18:57 ` Cédric Le Goater
2019-02-05 5:33 ` David Gibson
2019-02-05 11:58 ` Cédric Le Goater
2019-02-06 1:19 ` David Gibson
2019-01-22 4:46 ` [PATCH 00/19] KVM: PPC: Book3S HV: add XIVE native exploitation mode Paul Mackerras
2019-01-23 19:07 ` Cédric Le Goater
2019-01-23 21:35 ` Benjamin Herrenschmidt
2019-01-26 8:25 ` Cédric Le Goater
2019-02-04 5:36 ` David Gibson
2019-02-05 11:31 ` Cédric Le Goater
2019-02-05 22:13 ` Paul Mackerras
2019-02-06 1:18 ` David Gibson
2019-02-06 7:35 ` Cédric Le Goater
2019-02-07 2:51 ` David Gibson
2019-02-07 8:31 ` Cédric Le Goater
2019-02-08 5:07 ` David Gibson
2019-02-08 7:38 ` Cédric Le Goater
2019-01-28 5:51 ` Paul Mackerras
2019-01-29 13:51 ` Cédric Le Goater
2019-01-30 5:40 ` Paul Mackerras
2019-01-30 15:36 ` Cédric Le Goater
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