From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36233) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YfGl6-0007Qj-8j for qemu-devel@nongnu.org; Mon, 06 Apr 2015 19:48:49 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YfGl5-00087r-5b for qemu-devel@nongnu.org; Mon, 06 Apr 2015 19:48:48 -0400 Received: from mail-pd0-x229.google.com ([2607:f8b0:400e:c02::229]:33398) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YfGl4-00087X-U5 for qemu-devel@nongnu.org; Mon, 06 Apr 2015 19:48:47 -0400 Received: by pdbnk13 with SMTP id nk13so59639380pdb.0 for ; Mon, 06 Apr 2015 16:48:46 -0700 (PDT) From: James Sullivan Date: Mon, 6 Apr 2015 17:45:35 -0600 Message-Id: <1428363937-19003-4-git-send-email-sullivan.james.f@gmail.com> In-Reply-To: <1428363937-19003-1-git-send-email-sullivan.james.f@gmail.com> References: <1428363937-19003-1-git-send-email-sullivan.james.f@gmail.com> Subject: [Qemu-devel] [PATCH v2 RESEND 3/5] apic: Added helper function apic_match_dest, apic_match_[physical, logical]_dest List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: pbonzini@redhat.com, James Sullivan , jan.kiszka@siemens.com, mst@redhat.com Added three helper functions apic_match_dest(), apic_match_physical_dest(), and apic_match_logical_dest() which can be used to determine if a logical or physical APIC ID match a given LAPIC under a given dest_mode. This does not account for shorthand. Signed-off-by: James Sullivan --- hw/intc/apic.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/hw/intc/apic.c b/hw/intc/apic.c index 47d2fb1..c49eb26 100644 --- a/hw/intc/apic.c +++ b/hw/intc/apic.c @@ -241,6 +241,32 @@ static struct APICCommonState *apic_lowest_prio(const uint32_t }\ } +static bool apic_match_physical_dest(struct APICCommonState *apic, uint8_t dest) +{ + return (dest == 0xff || apic->id == dest); +} + +static bool apic_match_logical_dest(struct APICCommonState *apic, uint8_t dest) +{ + if (apic->dest_mode == 0xf) { + return (dest & apic->log_dest) > 0; + } else if (apic->dest_mode == 0) { + return ((dest & 0xf0) == (apic->log_dest & 0xf0)) && + (dest & apic->log_dest & 0x0f) > 0; + } + return false; +} + +static bool apic_match_dest(struct APICCommonState *apic, uint8_t dest_mode, + uint8_t dest) +{ + if (dest_mode == 0) { + return apic_match_physical_dest(apic, dest); + } else { + return apic_match_logical_dest(apic, dest); + } +} + static void apic_bus_deliver(const uint32_t *deliver_bitmask, uint8_t delivery_mode, uint8_t vector_num, uint8_t trigger_mode) -- 2.3.4