From: David Gibson <david@gibson.dropbear.id.au>
To: Greg Kurz <groug@kaod.org>
Cc: "Jason Wang" <jasowang@redhat.com>,
"Riku Voipio" <riku.voipio@iki.fi>,
qemu-devel@nongnu.org, "Laurent Vivier" <laurent@vivier.eu>,
qemu-ppc@nongnu.org, clg@kaod.org,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Marc-André Lureau" <marcandre.lureau@redhat.com>,
philmd@redhat.com
Subject: Re: [PATCH v3 23/34] spapr, xics, xive: Move irq claim and free from SpaprIrq to SpaprInterruptController
Date: Thu, 3 Oct 2019 08:17:40 +1000 [thread overview]
Message-ID: <20191002221740.GZ11105@umbus.fritz.box> (raw)
In-Reply-To: <20191002095925.6e16c213@bahia.lan>
[-- Attachment #1: Type: text/plain, Size: 14636 bytes --]
On Wed, Oct 02, 2019 at 09:59:25AM +0200, Greg Kurz wrote:
> On Wed, 2 Oct 2019 12:51:57 +1000
> David Gibson <david@gibson.dropbear.id.au> wrote:
>
> > These methods, like cpu_intc_create, really belong to the interrupt
> > controller, but need to be called on all possible intcs.
> >
> > Like cpu_intc_create, therefore, make them methods on the intc and
> > always call it for all existing intcs.
> >
> > Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
> > ---
> > hw/intc/spapr_xive.c | 71 ++++++++++++-----------
> > hw/intc/xics_spapr.c | 29 ++++++++++
> > hw/ppc/spapr_irq.c | 110 +++++++++++-------------------------
> > include/hw/ppc/spapr_irq.h | 5 +-
> > include/hw/ppc/spapr_xive.h | 2 -
> > 5 files changed, 102 insertions(+), 115 deletions(-)
> >
> > diff --git a/hw/intc/spapr_xive.c b/hw/intc/spapr_xive.c
> > index 9338daba3d..ff1a175b44 100644
> > --- a/hw/intc/spapr_xive.c
> > +++ b/hw/intc/spapr_xive.c
> > @@ -487,6 +487,42 @@ static const VMStateDescription vmstate_spapr_xive = {
> > },
> > };
> >
> > +static int spapr_xive_claim_irq(SpaprInterruptController *intc, int lisn,
> > + bool lsi, Error **errp)
> > +{
> > + SpaprXive *xive = SPAPR_XIVE(intc);
> > + XiveSource *xsrc = &xive->source;
> > +
> > + assert(lisn < xive->nr_irqs);
> > +
> > + if (xive_eas_is_valid(&xive->eat[lisn])) {
> > + error_setg(errp, "IRQ %d is not free", lisn);
> > + return -EBUSY;
> > + }
> > +
> > + /*
> > + * Set default values when allocating an IRQ number
> > + */
> > + xive->eat[lisn].w |= cpu_to_be64(EAS_VALID | EAS_MASKED);
> > + if (lsi) {
> > + xive_source_irq_set_lsi(xsrc, lisn);
> > + }
> > +
> > + if (kvm_irqchip_in_kernel()) {
> > + return kvmppc_xive_source_reset_one(xsrc, lisn, errp);
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static void spapr_xive_free_irq(SpaprInterruptController *intc, int lisn)
> > +{
> > + SpaprXive *xive = SPAPR_XIVE(intc);
> > + assert(lisn < xive->nr_irqs);
> > +
> > + xive->eat[lisn].w &= cpu_to_be64(~EAS_VALID);
> > +}
> > +
> > static Property spapr_xive_properties[] = {
> > DEFINE_PROP_UINT32("nr-irqs", SpaprXive, nr_irqs, 0),
> > DEFINE_PROP_UINT32("nr-ends", SpaprXive, nr_ends, 0),
> > @@ -536,6 +572,8 @@ static void spapr_xive_class_init(ObjectClass *klass, void *data)
> > xrc->get_tctx = spapr_xive_get_tctx;
> >
> > sicc->cpu_intc_create = spapr_xive_cpu_intc_create;
> > + sicc->claim_irq = spapr_xive_claim_irq;
> > + sicc->free_irq = spapr_xive_free_irq;
> > }
> >
> > static const TypeInfo spapr_xive_info = {
> > @@ -557,39 +595,6 @@ static void spapr_xive_register_types(void)
> >
> > type_init(spapr_xive_register_types)
> >
> > -int spapr_xive_irq_claim(SpaprXive *xive, int lisn, bool lsi, Error **errp)
> > -{
> > - XiveSource *xsrc = &xive->source;
> > -
> > - assert(lisn < xive->nr_irqs);
> > -
> > - if (xive_eas_is_valid(&xive->eat[lisn])) {
> > - error_setg(errp, "IRQ %d is not free", lisn);
> > - return -EBUSY;
> > - }
> > -
> > - /*
> > - * Set default values when allocating an IRQ number
> > - */
> > - xive->eat[lisn].w |= cpu_to_be64(EAS_VALID | EAS_MASKED);
> > - if (lsi) {
> > - xive_source_irq_set_lsi(xsrc, lisn);
> > - }
> > -
> > - if (kvm_irqchip_in_kernel()) {
> > - return kvmppc_xive_source_reset_one(xsrc, lisn, errp);
> > - }
> > -
> > - return 0;
> > -}
> > -
> > -void spapr_xive_irq_free(SpaprXive *xive, int lisn)
> > -{
> > - assert(lisn < xive->nr_irqs);
> > -
> > - xive->eat[lisn].w &= cpu_to_be64(~EAS_VALID);
> > -}
> > -
> > /*
> > * XIVE hcalls
> > *
> > diff --git a/hw/intc/xics_spapr.c b/hw/intc/xics_spapr.c
> > index 946311b858..224fe1efcd 100644
> > --- a/hw/intc/xics_spapr.c
> > +++ b/hw/intc/xics_spapr.c
> > @@ -346,6 +346,33 @@ static int xics_spapr_cpu_intc_create(SpaprInterruptController *intc,
> > return 0;
> > }
> >
> > +static int xics_spapr_claim_irq(SpaprInterruptController *intc, int irq,
> > + bool lsi, Error **errp)
> > +{
> > + ICSState *ics = ICS_SPAPR(intc);
> > +
> > + assert(ics);
> > + assert(ics_valid_irq(ics, irq));
> > +
> > + if (!ics_irq_free(ics, irq - ics->offset)) {
> > + error_setg(errp, "IRQ %d is not free", irq);
> > + return -EBUSY;
>
> I guess it makes more sense to return -EBUSY rather than -1 indeed,
> and it doesn't break anything.
>
> > + }
> > +
> > + ics_set_irq_type(ics, irq - ics->offset, lsi);
> > + return 0;
> > +}
> > +
> > +static void xics_spapr_free_irq(SpaprInterruptController *intc, int irq)
> > +{
> > + ICSState *ics = ICS_SPAPR(intc);
> > + uint32_t srcno = irq - ics->offset;
> > +
> > + assert(ics_valid_irq(ics, irq));
> > +
> > + memset(&ics->irqs[srcno], 0, sizeof(ICSIRQState));
> > +}
> > +
> > static void ics_spapr_class_init(ObjectClass *klass, void *data)
> > {
> > DeviceClass *dc = DEVICE_CLASS(klass);
> > @@ -355,6 +382,8 @@ static void ics_spapr_class_init(ObjectClass *klass, void *data)
> > device_class_set_parent_realize(dc, ics_spapr_realize,
> > &isc->parent_realize);
> > sicc->cpu_intc_create = xics_spapr_cpu_intc_create;
> > + sicc->claim_irq = xics_spapr_claim_irq;
> > + sicc->free_irq = xics_spapr_free_irq;
> > }
> >
> > static const TypeInfo ics_spapr_info = {
> > diff --git a/hw/ppc/spapr_irq.c b/hw/ppc/spapr_irq.c
> > index 9cb2fc71ca..83882cfad3 100644
> > --- a/hw/ppc/spapr_irq.c
> > +++ b/hw/ppc/spapr_irq.c
> > @@ -98,33 +98,6 @@ static void spapr_irq_init_kvm(SpaprMachineState *spapr,
> > * XICS IRQ backend.
> > */
> >
> > -static int spapr_irq_claim_xics(SpaprMachineState *spapr, int irq, bool lsi,
> > - Error **errp)
> > -{
> > - ICSState *ics = spapr->ics;
> > -
> > - assert(ics);
> > - assert(ics_valid_irq(ics, irq));
> > -
> > - if (!ics_irq_free(ics, irq - ics->offset)) {
> > - error_setg(errp, "IRQ %d is not free", irq);
> > - return -1;
> > - }
> > -
> > - ics_set_irq_type(ics, irq - ics->offset, lsi);
> > - return 0;
> > -}
> > -
> > -static void spapr_irq_free_xics(SpaprMachineState *spapr, int irq)
> > -{
> > - ICSState *ics = spapr->ics;
> > - uint32_t srcno = irq - ics->offset;
> > -
> > - assert(ics_valid_irq(ics, irq));
> > -
> > - memset(&ics->irqs[srcno], 0, sizeof(ICSIRQState));
> > -}
> > -
> > static void spapr_irq_print_info_xics(SpaprMachineState *spapr, Monitor *mon)
> > {
> > CPUState *cs;
> > @@ -182,8 +155,6 @@ SpaprIrq spapr_irq_xics = {
> > .xics = true,
> > .xive = false,
> >
> > - .claim = spapr_irq_claim_xics,
> > - .free = spapr_irq_free_xics,
> > .print_info = spapr_irq_print_info_xics,
> > .dt_populate = spapr_dt_xics,
> > .post_load = spapr_irq_post_load_xics,
> > @@ -196,17 +167,6 @@ SpaprIrq spapr_irq_xics = {
> > * XIVE IRQ backend.
> > */
> >
> > -static int spapr_irq_claim_xive(SpaprMachineState *spapr, int irq, bool lsi,
> > - Error **errp)
> > -{
> > - return spapr_xive_irq_claim(spapr->xive, irq, lsi, errp);
> > -}
> > -
> > -static void spapr_irq_free_xive(SpaprMachineState *spapr, int irq)
> > -{
> > - spapr_xive_irq_free(spapr->xive, irq);
> > -}
> > -
> > static void spapr_irq_print_info_xive(SpaprMachineState *spapr,
> > Monitor *mon)
> > {
> > @@ -272,8 +232,6 @@ SpaprIrq spapr_irq_xive = {
> > .xics = false,
> > .xive = true,
> >
> > - .claim = spapr_irq_claim_xive,
> > - .free = spapr_irq_free_xive,
> > .print_info = spapr_irq_print_info_xive,
> > .dt_populate = spapr_dt_xive,
> > .post_load = spapr_irq_post_load_xive,
> > @@ -301,33 +259,6 @@ static SpaprIrq *spapr_irq_current(SpaprMachineState *spapr)
> > &spapr_irq_xive : &spapr_irq_xics;
> > }
> >
> > -static int spapr_irq_claim_dual(SpaprMachineState *spapr, int irq, bool lsi,
> > - Error **errp)
> > -{
> > - Error *local_err = NULL;
> > - int ret;
> > -
> > - ret = spapr_irq_xics.claim(spapr, irq, lsi, &local_err);
> > - if (local_err) {
> > - error_propagate(errp, local_err);
> > - return ret;
> > - }
> > -
> > - ret = spapr_irq_xive.claim(spapr, irq, lsi, &local_err);
> > - if (local_err) {
> > - error_propagate(errp, local_err);
> > - return ret;
> > - }
> > -
> > - return ret;
> > -}
> > -
> > -static void spapr_irq_free_dual(SpaprMachineState *spapr, int irq)
> > -{
> > - spapr_irq_xics.free(spapr, irq);
> > - spapr_irq_xive.free(spapr, irq);
> > -}
> > -
> > static void spapr_irq_print_info_dual(SpaprMachineState *spapr, Monitor *mon)
> > {
> > spapr_irq_current(spapr)->print_info(spapr, mon);
> > @@ -401,8 +332,6 @@ SpaprIrq spapr_irq_dual = {
> > .xics = true,
> > .xive = true,
> >
> > - .claim = spapr_irq_claim_dual,
> > - .free = spapr_irq_free_dual,
> > .print_info = spapr_irq_print_info_dual,
> > .dt_populate = spapr_irq_dt_populate_dual,
> > .post_load = spapr_irq_post_load_dual,
> > @@ -572,8 +501,11 @@ void spapr_irq_init(SpaprMachineState *spapr, Error **errp)
> >
> > /* Enable the CPU IPIs */
> > for (i = 0; i < nr_servers; ++i) {
> > - if (spapr_xive_irq_claim(spapr->xive, SPAPR_IRQ_IPI + i,
> > - false, errp) < 0) {
> > + SpaprInterruptControllerClass *sicc
> > + = SPAPR_INTC_GET_CLASS(spapr->xive);
> > +
> > + if (sicc->claim_irq(SPAPR_INTC(spapr->xive), SPAPR_IRQ_IPI + i,
> > + false, errp) < 0) {
> > return;
> > }
> > }
> > @@ -587,21 +519,45 @@ void spapr_irq_init(SpaprMachineState *spapr, Error **errp)
> >
> > int spapr_irq_claim(SpaprMachineState *spapr, int irq, bool lsi, Error **errp)
> > {
> > + SpaprInterruptController *intcs[] = ALL_INTCS(spapr);
> > + int i;
> > + int rc;
> > +
> > assert(irq >= SPAPR_XIRQ_BASE);
> > assert(irq < (spapr->irq->nr_xirqs + SPAPR_XIRQ_BASE));
> >
> > - return spapr->irq->claim(spapr, irq, lsi, errp);
> > + for (i = 0; i < ARRAY_SIZE(intcs); i++) {
> > + SpaprInterruptController *intc = intcs[i];
> > + if (intc) {
> > + SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(intc);
> > + rc = sicc->claim_irq(intc, irq, lsi, errp);
> > + if (rc < 0) {
> > + return rc;
> > + }
> > + }
> > + }
> > +
> > + return 0;
> > }
> >
> > void spapr_irq_free(SpaprMachineState *spapr, int irq, int num)
> > {
> > - int i;
> > + SpaprInterruptController *intcs[] = ALL_INTCS(spapr);
> > + int i, j;
> >
> > assert(irq >= SPAPR_XIRQ_BASE);
> > assert((irq + num) <= (spapr->irq->nr_xirqs + SPAPR_XIRQ_BASE));
> >
> > for (i = irq; i < (irq + num); i++) {
> > - spapr->irq->free(spapr, i);
> > + for (j = 0; j < ARRAY_SIZE(intcs); j++) {
> > + SpaprInterruptController *intc = intcs[j];
> > +
> > + if (intc) {
> > + SpaprInterruptControllerClass *sicc
> > + = SPAPR_INTC_GET_CLASS(intc);
> > + sicc->free_irq(intc, i);
> > + }
> > + }
>
> Yet another intcs[] boiler plate. I'm wondering if this could go
> into a macro. Anyway, this could be looked at later. This series
> is large enough already :)
I couldn't think of a way that didn't have really awkward syntax.
>
> Reviewed-by: Greg Kurz <groug@kaod.org>
>
> > }
> > }
> >
> > @@ -726,8 +682,6 @@ SpaprIrq spapr_irq_xics_legacy = {
> > .xics = true,
> > .xive = false,
> >
> > - .claim = spapr_irq_claim_xics,
> > - .free = spapr_irq_free_xics,
> > .print_info = spapr_irq_print_info_xics,
> > .dt_populate = spapr_dt_xics,
> > .post_load = spapr_irq_post_load_xics,
> > diff --git a/include/hw/ppc/spapr_irq.h b/include/hw/ppc/spapr_irq.h
> > index 5e641e23c1..adfef0fcbe 100644
> > --- a/include/hw/ppc/spapr_irq.h
> > +++ b/include/hw/ppc/spapr_irq.h
> > @@ -50,6 +50,9 @@ typedef struct SpaprInterruptControllerClass {
> > */
> > int (*cpu_intc_create)(SpaprInterruptController *intc,
> > PowerPCCPU *cpu, Error **errp);
> > + int (*claim_irq)(SpaprInterruptController *intc, int irq, bool lsi,
> > + Error **errp);
> > + void (*free_irq)(SpaprInterruptController *intc, int irq);
> > } SpaprInterruptControllerClass;
> >
> > int spapr_irq_cpu_intc_create(SpaprMachineState *spapr,
> > @@ -67,8 +70,6 @@ typedef struct SpaprIrq {
> > bool xics;
> > bool xive;
> >
> > - int (*claim)(SpaprMachineState *spapr, int irq, bool lsi, Error **errp);
> > - void (*free)(SpaprMachineState *spapr, int irq);
> > void (*print_info)(SpaprMachineState *spapr, Monitor *mon);
> > void (*dt_populate)(SpaprMachineState *spapr, uint32_t nr_servers,
> > void *fdt, uint32_t phandle);
> > diff --git a/include/hw/ppc/spapr_xive.h b/include/hw/ppc/spapr_xive.h
> > index 0df20a6590..8f875673f5 100644
> > --- a/include/hw/ppc/spapr_xive.h
> > +++ b/include/hw/ppc/spapr_xive.h
> > @@ -54,8 +54,6 @@ typedef struct SpaprXive {
> > */
> > #define SPAPR_XIVE_BLOCK_ID 0x0
> >
> > -int spapr_xive_irq_claim(SpaprXive *xive, int lisn, bool lsi, Error **errp);
> > -void spapr_xive_irq_free(SpaprXive *xive, int lisn);
> > void spapr_xive_pic_print_info(SpaprXive *xive, Monitor *mon);
> > int spapr_xive_post_load(SpaprXive *xive, int version_id);
> >
>
--
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
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
next prev parent reply other threads:[~2019-10-02 22:34 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-02 2:51 [PATCH v3 00/34] spapr: IRQ subsystem cleanup David Gibson
2019-10-02 2:51 ` [PATCH v3 01/34] xics: Minor fixes for XICSFabric interface David Gibson
2019-10-02 5:51 ` Cédric Le Goater
2019-10-02 5:55 ` Cédric Le Goater
2019-10-02 5:55 ` David Gibson
2019-10-02 6:56 ` Greg Kurz
2019-10-02 2:51 ` [PATCH v3 02/34] xics: Eliminate 'reject', 'resend' and 'eoi' class hooks David Gibson
2019-10-02 2:51 ` [PATCH v3 03/34] xics: Rename misleading ics_simple_*() functions David Gibson
2019-10-02 2:51 ` [PATCH v3 04/34] xics: Eliminate reset hook David Gibson
2019-10-02 2:51 ` [PATCH v3 05/34] xics: Merge TYPE_ICS_BASE and TYPE_ICS_SIMPLE classes David Gibson
2019-10-02 2:51 ` [PATCH v3 06/34] xics: Create sPAPR specific ICS subtype David Gibson
2019-10-02 2:51 ` [PATCH v3 07/34] spapr: Fold spapr_phb_lsi_qirq() into its single caller David Gibson
2019-10-02 2:51 ` [PATCH v3 08/34] spapr: Replace spapr_vio_qirq() helper with spapr_vio_irq_pulse() helper David Gibson
2019-10-02 2:51 ` [PATCH v3 09/34] spapr: Clarify and fix handling of nr_irqs David Gibson
2019-10-02 5:57 ` Cédric Le Goater
2019-10-02 2:51 ` [PATCH v3 10/34] spapr: Eliminate nr_irqs parameter to SpaprIrq::init David Gibson
2019-10-02 2:51 ` [PATCH v3 11/34] spapr: Fix indexing of XICS irqs David Gibson
2019-10-02 2:51 ` [PATCH v3 12/34] spapr: Simplify spapr_qirq() handling David Gibson
2019-10-02 2:51 ` [PATCH v3 13/34] spapr: Eliminate SpaprIrq:get_nodename method David Gibson
2019-10-02 2:51 ` [PATCH v3 14/34] spapr: Remove unhelpful tracepoints from spapr_irq_free_xics() David Gibson
2019-10-02 2:51 ` [PATCH v3 15/34] spapr: Handle freeing of multiple irqs in frontend only David Gibson
2019-10-02 5:51 ` Greg Kurz
2019-10-02 5:55 ` Cédric Le Goater
2019-10-02 2:51 ` [PATCH v3 16/34] spapr, xics, xive: Better use of assert()s on irq claim/free paths David Gibson
2019-10-02 2:51 ` [PATCH v3 17/34] xive: Improve irq claim/free path David Gibson
2019-10-02 2:51 ` [PATCH v3 18/34] spapr: Use less cryptic representation of which irq backends are supported David Gibson
2019-10-02 2:51 ` [PATCH v3 19/34] spapr: Add return value to spapr_irq_check() David Gibson
2019-10-02 5:58 ` Cédric Le Goater
2019-10-02 6:08 ` Greg Kurz
2019-10-02 2:51 ` [PATCH v3 20/34] spapr: Eliminate SpaprIrq::init hook David Gibson
2019-10-02 2:51 ` [PATCH v3 21/34] spapr, xics, xive: Introduce SpaprInterruptController QOM interface David Gibson
2019-10-02 2:51 ` [PATCH v3 22/34] spapr, xics, xive: Move cpu_intc_create from SpaprIrq to SpaprInterruptController David Gibson
2019-10-02 6:06 ` Cédric Le Goater
2019-10-02 6:10 ` David Gibson
2019-10-02 6:13 ` Cédric Le Goater
2019-10-02 6:40 ` David Gibson
2019-10-02 7:31 ` Cédric Le Goater
2019-10-02 22:28 ` David Gibson
2019-10-02 7:13 ` Greg Kurz
2019-10-02 9:41 ` Cédric Le Goater
2019-10-02 2:51 ` [PATCH v3 23/34] spapr, xics, xive: Move irq claim and free " David Gibson
2019-10-02 6:10 ` Cédric Le Goater
2019-10-02 6:16 ` David Gibson
2019-10-02 7:59 ` Greg Kurz
2019-10-02 22:17 ` David Gibson [this message]
2019-10-02 9:23 ` Cédric Le Goater
2019-10-02 2:51 ` [PATCH v3 24/34] spapr: Formalize notion of active interrupt controller David Gibson
2019-10-02 2:51 ` [PATCH v3 25/34] spapr, xics, xive: Move set_irq from SpaprIrq to SpaprInterruptController David Gibson
2019-10-02 2:52 ` [PATCH v3 26/34] spapr, xics, xive: Move print_info " David Gibson
2019-10-02 2:52 ` [PATCH v3 27/34] spapr, xics, xive: Move dt_populate " David Gibson
2019-10-02 2:52 ` [PATCH v3 28/34] spapr, xics, xive: Match signatures for XICS and XIVE KVM connect routines David Gibson
2019-10-02 2:52 ` [PATCH v3 29/34] spapr: Remove SpaprIrq::init_kvm hook David Gibson
2019-10-02 2:52 ` [PATCH v3 30/34] spapr, xics, xive: Move SpaprIrq::reset hook logic into activate/deactivate David Gibson
2019-10-02 9:29 ` Greg Kurz
2019-10-03 0:22 ` David Gibson
2019-10-02 2:52 ` [PATCH v3 31/34] spapr, xics, xive: Move SpaprIrq::post_load hook to backends David Gibson
2019-10-02 9:50 ` Greg Kurz
2019-10-02 2:52 ` [PATCH v3 32/34] spapr: Remove SpaprIrq::nr_msis David Gibson
2019-10-02 2:52 ` [PATCH v3 33/34] spapr: Move SpaprIrq::nr_xirqs to SpaprMachineClass David Gibson
2019-10-02 2:52 ` [PATCH v3 34/34] spapr: Remove last pieces of SpaprIrq David Gibson
2019-10-02 10:20 ` Greg Kurz
2019-10-02 22:31 ` David Gibson
2019-10-03 5:19 ` David Gibson
2019-10-03 6:18 ` [PATCH v3 00/34] spapr: IRQ subsystem cleanup David Gibson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20191002221740.GZ11105@umbus.fritz.box \
--to=david@gibson.dropbear.id.au \
--cc=clg@kaod.org \
--cc=groug@kaod.org \
--cc=jasowang@redhat.com \
--cc=laurent@vivier.eu \
--cc=marcandre.lureau@redhat.com \
--cc=pbonzini@redhat.com \
--cc=philmd@redhat.com \
--cc=qemu-devel@nongnu.org \
--cc=qemu-ppc@nongnu.org \
--cc=riku.voipio@iki.fi \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).