8254TimerDxe is not used by any platforms at this point, remove it. This patch removes mentions of the following CSM resources from the source code:
- GUIDs (protocols or otherwise): - gEfiLegacy8259ProtocolGuid - headers: - Protocol/Legacy8259.h which extends the list of resources scheduled for removal to: - GUIDs (protocols or otherwise): - gEfiLegacy8259ProtocolGuid - headers: - Protocol/Legacy8259.h Cc: Ard Biesheuvel <ardb+tianoc...@kernel.org> Cc: Gerd Hoffmann <kra...@redhat.com> Cc: Jiewen Yao <jiewen....@intel.com> Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=4588 Signed-off-by: Laszlo Ersek <ler...@redhat.com> --- OvmfPkg/8254TimerDxe/Timer.uni | 16 - OvmfPkg/8254TimerDxe/TimerExtra.uni | 14 - OvmfPkg/8254TimerDxe/8254Timer.inf | 43 --- OvmfPkg/8254TimerDxe/Timer.h | 186 --------- OvmfPkg/8254TimerDxe/Timer.c | 406 -------------------- 5 files changed, 665 deletions(-) diff --git a/OvmfPkg/8254TimerDxe/Timer.uni b/OvmfPkg/8254TimerDxe/Timer.uni deleted file mode 100644 index 7f3d35f4e1cd..000000000000 --- a/OvmfPkg/8254TimerDxe/Timer.uni +++ /dev/null @@ -1,16 +0,0 @@ -// /** @file -// 8254 timer driver that provides Timer Arch protocol. -// -// 8254 timer driver that provides Timer Arch protocol. -// -// Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved.<BR> -// -// SPDX-License-Identifier: BSD-2-Clause-Patent -// -// **/ - - -#string STR_MODULE_ABSTRACT #language en-US "8254 timer driver that provides Timer Arch protocol" - -#string STR_MODULE_DESCRIPTION #language en-US "8254 timer driver that provides Timer Arch protocol." - diff --git a/OvmfPkg/8254TimerDxe/TimerExtra.uni b/OvmfPkg/8254TimerDxe/TimerExtra.uni deleted file mode 100644 index 7a54767a451b..000000000000 --- a/OvmfPkg/8254TimerDxe/TimerExtra.uni +++ /dev/null @@ -1,14 +0,0 @@ -// /** @file -// Timer Localized Strings and Content -// -// Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved.<BR> -// -// SPDX-License-Identifier: BSD-2-Clause-Patent -// -// **/ - -#string STR_PROPERTIES_MODULE_NAME -#language en-US -"8254 Timer DXE Driver" - - diff --git a/OvmfPkg/8254TimerDxe/8254Timer.inf b/OvmfPkg/8254TimerDxe/8254Timer.inf deleted file mode 100644 index 8fbab896f01b..000000000000 --- a/OvmfPkg/8254TimerDxe/8254Timer.inf +++ /dev/null @@ -1,43 +0,0 @@ -## @file -# 8254 timer driver that provides Timer Arch protocol. -# -# Copyright (c) 2005 - 2019, Intel Corporation. All rights reserved.<BR> -# SPDX-License-Identifier: BSD-2-Clause-Patent -# -## - -[Defines] - INF_VERSION = 0x00010005 - BASE_NAME = Timer - MODULE_UNI_FILE = Timer.uni - FILE_GUID = C190FE35-44AA-41A1-8AEA-4947BC60E09D - MODULE_TYPE = DXE_DRIVER - VERSION_STRING = 1.0 - - ENTRY_POINT = TimerDriverInitialize - -[Packages] - MdePkg/MdePkg.dec - OvmfPkg/OvmfPkg.dec - -[LibraryClasses] - UefiBootServicesTableLib - BaseLib - DebugLib - NestedInterruptTplLib - UefiDriverEntryPoint - IoLib - -[Sources] - Timer.h - Timer.c - -[Protocols] - gEfiCpuArchProtocolGuid ## CONSUMES - gEfiLegacy8259ProtocolGuid ## CONSUMES - gEfiTimerArchProtocolGuid ## PRODUCES - -[Depex] - gEfiCpuArchProtocolGuid AND gEfiLegacy8259ProtocolGuid -[UserExtensions.TianoCore."ExtraFiles"] - TimerExtra.uni diff --git a/OvmfPkg/8254TimerDxe/Timer.h b/OvmfPkg/8254TimerDxe/Timer.h deleted file mode 100644 index b19ef3c1f94e..000000000000 --- a/OvmfPkg/8254TimerDxe/Timer.h +++ /dev/null @@ -1,186 +0,0 @@ -/** @file - Private data structures - -Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved.<BR> -SPDX-License-Identifier: BSD-2-Clause-Patent -**/ - -#ifndef _TIMER_H_ -#define _TIMER_H_ - -#include <PiDxe.h> - -#include <Protocol/Cpu.h> -#include <Protocol/Legacy8259.h> -#include <Protocol/Timer.h> - -#include <Library/UefiBootServicesTableLib.h> -#include <Library/BaseLib.h> -#include <Library/DebugLib.h> -#include <Library/IoLib.h> - -// -// The PCAT 8253/8254 has an input clock at 1.193182 MHz and Timer 0 is -// initialized as a 16 bit free running counter that generates an interrupt(IRQ0) -// each time the counter rolls over. -// -// 65536 counts -// ---------------- * 1,000,000 uS/S = 54925.4 uS = 549254 * 100 ns -// 1,193,182 Hz -// - -// -// The maximum tick duration for 8254 timer -// -#define MAX_TIMER_TICK_DURATION 549254 -// -// The default timer tick duration is set to 10 ms = 100000 100 ns units -// -#define DEFAULT_TIMER_TICK_DURATION 100000 -#define TIMER_CONTROL_PORT 0x43 -#define TIMER0_COUNT_PORT 0x40 - -// -// Function Prototypes -// - -/** - Initialize the Timer Architectural Protocol driver - - @param ImageHandle ImageHandle of the loaded driver - @param SystemTable Pointer to the System Table - - @retval EFI_SUCCESS Timer Architectural Protocol created - @retval EFI_OUT_OF_RESOURCES Not enough resources available to initialize driver. - @retval EFI_DEVICE_ERROR A device error occurred attempting to initialize the driver. - -**/ -EFI_STATUS -EFIAPI -TimerDriverInitialize ( - IN EFI_HANDLE ImageHandle, - IN EFI_SYSTEM_TABLE *SystemTable - ) -; - -/** - - This function adjusts the period of timer interrupts to the value specified - by TimerPeriod. If the timer period is updated, then the selected timer - period is stored in EFI_TIMER.TimerPeriod, and EFI_SUCCESS is returned. If - the timer hardware is not programmable, then EFI_UNSUPPORTED is returned. - If an error occurs while attempting to update the timer period, then the - timer hardware will be put back in its state prior to this call, and - EFI_DEVICE_ERROR is returned. If TimerPeriod is 0, then the timer interrupt - is disabled. This is not the same as disabling the CPU's interrupts. - Instead, it must either turn off the timer hardware, or it must adjust the - interrupt controller so that a CPU interrupt is not generated when the timer - interrupt fires. - - - @param This The EFI_TIMER_ARCH_PROTOCOL instance. - @param NotifyFunction The rate to program the timer interrupt in 100 nS units. If - the timer hardware is not programmable, then EFI_UNSUPPORTED is - returned. If the timer is programmable, then the timer period - will be rounded up to the nearest timer period that is supported - by the timer hardware. If TimerPeriod is set to 0, then the - timer interrupts will be disabled. - - @retval EFI_SUCCESS The timer period was changed. - @retval EFI_UNSUPPORTED The platform cannot change the period of the timer interrupt. - @retval EFI_DEVICE_ERROR The timer period could not be changed due to a device error. - -**/ -EFI_STATUS -EFIAPI -TimerDriverRegisterHandler ( - IN EFI_TIMER_ARCH_PROTOCOL *This, - IN EFI_TIMER_NOTIFY NotifyFunction - ) -; - -/** - - This function adjusts the period of timer interrupts to the value specified - by TimerPeriod. If the timer period is updated, then the selected timer - period is stored in EFI_TIMER.TimerPeriod, and EFI_SUCCESS is returned. If - the timer hardware is not programmable, then EFI_UNSUPPORTED is returned. - If an error occurs while attempting to update the timer period, then the - timer hardware will be put back in its state prior to this call, and - EFI_DEVICE_ERROR is returned. If TimerPeriod is 0, then the timer interrupt - is disabled. This is not the same as disabling the CPU's interrupts. - Instead, it must either turn off the timer hardware, or it must adjust the - interrupt controller so that a CPU interrupt is not generated when the timer - interrupt fires. - - - @param This The EFI_TIMER_ARCH_PROTOCOL instance. - @param TimerPeriod The rate to program the timer interrupt in 100 nS units. If - the timer hardware is not programmable, then EFI_UNSUPPORTED is - returned. If the timer is programmable, then the timer period - will be rounded up to the nearest timer period that is supported - by the timer hardware. If TimerPeriod is set to 0, then the - timer interrupts will be disabled. - - @retval EFI_SUCCESS The timer period was changed. - @retval EFI_UNSUPPORTED The platform cannot change the period of the timer interrupt. - @retval EFI_DEVICE_ERROR The timer period could not be changed due to a device error. - -**/ -EFI_STATUS -EFIAPI -TimerDriverSetTimerPeriod ( - IN EFI_TIMER_ARCH_PROTOCOL *This, - IN UINT64 TimerPeriod - ) -; - -/** - - This function retrieves the period of timer interrupts in 100 ns units, - returns that value in TimerPeriod, and returns EFI_SUCCESS. If TimerPeriod - is NULL, then EFI_INVALID_PARAMETER is returned. If a TimerPeriod of 0 is - returned, then the timer is currently disabled. - - - @param This The EFI_TIMER_ARCH_PROTOCOL instance. - @param TimerPeriod A pointer to the timer period to retrieve in 100 ns units. If - 0 is returned, then the timer is currently disabled. - - @retval EFI_SUCCESS The timer period was returned in TimerPeriod. - @retval EFI_INVALID_PARAMETER TimerPeriod is NULL. - -**/ -EFI_STATUS -EFIAPI -TimerDriverGetTimerPeriod ( - IN EFI_TIMER_ARCH_PROTOCOL *This, - OUT UINT64 *TimerPeriod - ) -; - -/** - - This function generates a soft timer interrupt. If the platform does not support soft - timer interrupts, then EFI_UNSUPPORTED is returned. Otherwise, EFI_SUCCESS is returned. - If a handler has been registered through the EFI_TIMER_ARCH_PROTOCOL.RegisterHandler() - service, then a soft timer interrupt will be generated. If the timer interrupt is - enabled when this service is called, then the registered handler will be invoked. The - registered handler should not be able to distinguish a hardware-generated timer - interrupt from a software-generated timer interrupt. - - - @param This The EFI_TIMER_ARCH_PROTOCOL instance. - - @retval EFI_SUCCESS The soft timer interrupt was generated. - @retval EFI_UNSUPPORTED The platform does not support the generation of soft timer interrupts. - -**/ -EFI_STATUS -EFIAPI -TimerDriverGenerateSoftInterrupt ( - IN EFI_TIMER_ARCH_PROTOCOL *This - ) -; - -#endif diff --git a/OvmfPkg/8254TimerDxe/Timer.c b/OvmfPkg/8254TimerDxe/Timer.c deleted file mode 100644 index 5382b01615df..000000000000 --- a/OvmfPkg/8254TimerDxe/Timer.c +++ /dev/null @@ -1,406 +0,0 @@ -/** @file - Timer Architectural Protocol as defined in the DXE CIS - -Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved.<BR> -SPDX-License-Identifier: BSD-2-Clause-Patent - -**/ - -#include <Library/NestedInterruptTplLib.h> - -#include "Timer.h" - -// -// The handle onto which the Timer Architectural Protocol will be installed -// -EFI_HANDLE mTimerHandle = NULL; - -// -// The Timer Architectural Protocol that this driver produces -// -EFI_TIMER_ARCH_PROTOCOL mTimer = { - TimerDriverRegisterHandler, - TimerDriverSetTimerPeriod, - TimerDriverGetTimerPeriod, - TimerDriverGenerateSoftInterrupt -}; - -// -// Pointer to the CPU Architectural Protocol instance -// -EFI_CPU_ARCH_PROTOCOL *mCpu; - -// -// Pointer to the Legacy 8259 Protocol instance -// -EFI_LEGACY_8259_PROTOCOL *mLegacy8259; - -// -// The notification function to call on every timer interrupt. -// A bug in the compiler prevents us from initializing this here. -// -EFI_TIMER_NOTIFY mTimerNotifyFunction; - -// -// The current period of the timer interrupt -// -volatile UINT64 mTimerPeriod = 0; - -// -// Worker Functions -// - -/** - Sets the counter value for Timer #0 in a legacy 8254 timer. - - @param Count The 16-bit counter value to program into Timer #0 of the legacy 8254 timer. -**/ -VOID -SetPitCount ( - IN UINT16 Count - ) -{ - IoWrite8 (TIMER_CONTROL_PORT, 0x36); - IoWrite8 (TIMER0_COUNT_PORT, (UINT8)(Count & 0xff)); - IoWrite8 (TIMER0_COUNT_PORT, (UINT8)((Count >> 8) & 0xff)); -} - -/** - 8254 Timer #0 Interrupt Handler. - - @param InterruptType The type of interrupt that occurred - @param SystemContext A pointer to the system context when the interrupt occurred -**/ -VOID -EFIAPI -TimerInterruptHandler ( - IN EFI_EXCEPTION_TYPE InterruptType, - IN EFI_SYSTEM_CONTEXT SystemContext - ) -{ - STATIC NESTED_INTERRUPT_STATE NestedInterruptState; - EFI_TPL OriginalTPL; - - OriginalTPL = NestedInterruptRaiseTPL (); - - mLegacy8259->EndOfInterrupt (mLegacy8259, Efi8259Irq0); - - if (mTimerNotifyFunction != NULL) { - // - // @bug : This does not handle missed timer interrupts - // - mTimerNotifyFunction (mTimerPeriod); - } - - NestedInterruptRestoreTPL (OriginalTPL, SystemContext, &NestedInterruptState); -} - -/** - - This function registers the handler NotifyFunction so it is called every time - the timer interrupt fires. It also passes the amount of time since the last - handler call to the NotifyFunction. If NotifyFunction is NULL, then the - handler is unregistered. If the handler is registered, then EFI_SUCCESS is - returned. If the CPU does not support registering a timer interrupt handler, - then EFI_UNSUPPORTED is returned. If an attempt is made to register a handler - when a handler is already registered, then EFI_ALREADY_STARTED is returned. - If an attempt is made to unregister a handler when a handler is not registered, - then EFI_INVALID_PARAMETER is returned. If an error occurs attempting to - register the NotifyFunction with the timer interrupt, then EFI_DEVICE_ERROR - is returned. - - - @param This The EFI_TIMER_ARCH_PROTOCOL instance. - @param NotifyFunction The function to call when a timer interrupt fires. This - function executes at TPL_HIGH_LEVEL. The DXE Core will - register a handler for the timer interrupt, so it can know - how much time has passed. This information is used to - signal timer based events. NULL will unregister the handler. - - @retval EFI_SUCCESS The timer handler was registered. - @retval EFI_UNSUPPORTED The platform does not support timer interrupts. - @retval EFI_ALREADY_STARTED NotifyFunction is not NULL, and a handler is already - registered. - @retval EFI_INVALID_PARAMETER NotifyFunction is NULL, and a handler was not - previously registered. - @retval EFI_DEVICE_ERROR The timer handler could not be registered. - -**/ -EFI_STATUS -EFIAPI -TimerDriverRegisterHandler ( - IN EFI_TIMER_ARCH_PROTOCOL *This, - IN EFI_TIMER_NOTIFY NotifyFunction - ) -{ - // - // Check for invalid parameters - // - if ((NotifyFunction == NULL) && (mTimerNotifyFunction == NULL)) { - return EFI_INVALID_PARAMETER; - } - - if ((NotifyFunction != NULL) && (mTimerNotifyFunction != NULL)) { - return EFI_ALREADY_STARTED; - } - - mTimerNotifyFunction = NotifyFunction; - - return EFI_SUCCESS; -} - -/** - - This function adjusts the period of timer interrupts to the value specified - by TimerPeriod. If the timer period is updated, then the selected timer - period is stored in EFI_TIMER.TimerPeriod, and EFI_SUCCESS is returned. If - the timer hardware is not programmable, then EFI_UNSUPPORTED is returned. - If an error occurs while attempting to update the timer period, then the - timer hardware will be put back in its state prior to this call, and - EFI_DEVICE_ERROR is returned. If TimerPeriod is 0, then the timer interrupt - is disabled. This is not the same as disabling the CPU's interrupts. - Instead, it must either turn off the timer hardware, or it must adjust the - interrupt controller so that a CPU interrupt is not generated when the timer - interrupt fires. - - - @param This The EFI_TIMER_ARCH_PROTOCOL instance. - @param TimerPeriod The rate to program the timer interrupt in 100 nS units. If - the timer hardware is not programmable, then EFI_UNSUPPORTED is - returned. If the timer is programmable, then the timer period - will be rounded up to the nearest timer period that is supported - by the timer hardware. If TimerPeriod is set to 0, then the - timer interrupts will be disabled. - - @retval EFI_SUCCESS The timer period was changed. - @retval EFI_UNSUPPORTED The platform cannot change the period of the timer interrupt. - @retval EFI_DEVICE_ERROR The timer period could not be changed due to a device error. - -**/ -EFI_STATUS -EFIAPI -TimerDriverSetTimerPeriod ( - IN EFI_TIMER_ARCH_PROTOCOL *This, - IN UINT64 TimerPeriod - ) -{ - UINT64 TimerCount; - - // - // The basic clock is 1.19318 MHz or 0.119318 ticks per 100 ns. - // TimerPeriod * 0.119318 = 8254 timer divisor. Using integer arithmetic - // TimerCount = (TimerPeriod * 119318)/1000000. - // - // Round up to next highest integer. This guarantees that the timer is - // equal to or slightly longer than the requested time. - // TimerCount = ((TimerPeriod * 119318) + 500000)/1000000 - // - // Note that a TimerCount of 0 is equivalent to a count of 65,536 - // - // Since TimerCount is limited to 16 bits for IA32, TimerPeriod is limited - // to 20 bits. - // - if (TimerPeriod == 0) { - // - // Disable timer interrupt for a TimerPeriod of 0 - // - mLegacy8259->DisableIrq (mLegacy8259, Efi8259Irq0); - } else { - // - // Convert TimerPeriod into 8254 counts - // - TimerCount = DivU64x32 (MultU64x32 (119318, (UINT32)TimerPeriod) + 500000, 1000000); - - // - // Check for overflow - // - if (TimerCount >= 65536) { - TimerCount = 0; - TimerPeriod = MAX_TIMER_TICK_DURATION; - } - - // - // Program the 8254 timer with the new count value - // - SetPitCount ((UINT16)TimerCount); - - // - // Enable timer interrupt - // - mLegacy8259->EnableIrq (mLegacy8259, Efi8259Irq0, FALSE); - } - - // - // Save the new timer period - // - mTimerPeriod = TimerPeriod; - - return EFI_SUCCESS; -} - -/** - - This function retrieves the period of timer interrupts in 100 ns units, - returns that value in TimerPeriod, and returns EFI_SUCCESS. If TimerPeriod - is NULL, then EFI_INVALID_PARAMETER is returned. If a TimerPeriod of 0 is - returned, then the timer is currently disabled. - - - @param This The EFI_TIMER_ARCH_PROTOCOL instance. - @param TimerPeriod A pointer to the timer period to retrieve in 100 ns units. If - 0 is returned, then the timer is currently disabled. - - @retval EFI_SUCCESS The timer period was returned in TimerPeriod. - @retval EFI_INVALID_PARAMETER TimerPeriod is NULL. - -**/ -EFI_STATUS -EFIAPI -TimerDriverGetTimerPeriod ( - IN EFI_TIMER_ARCH_PROTOCOL *This, - OUT UINT64 *TimerPeriod - ) -{ - if (TimerPeriod == NULL) { - return EFI_INVALID_PARAMETER; - } - - *TimerPeriod = mTimerPeriod; - - return EFI_SUCCESS; -} - -/** - - This function generates a soft timer interrupt. If the platform does not support soft - timer interrupts, then EFI_UNSUPPORTED is returned. Otherwise, EFI_SUCCESS is returned. - If a handler has been registered through the EFI_TIMER_ARCH_PROTOCOL.RegisterHandler() - service, then a soft timer interrupt will be generated. If the timer interrupt is - enabled when this service is called, then the registered handler will be invoked. The - registered handler should not be able to distinguish a hardware-generated timer - interrupt from a software-generated timer interrupt. - - - @param This The EFI_TIMER_ARCH_PROTOCOL instance. - - @retval EFI_SUCCESS The soft timer interrupt was generated. - @retval EFI_UNSUPPORTED The platform does not support the generation of soft timer interrupts. - -**/ -EFI_STATUS -EFIAPI -TimerDriverGenerateSoftInterrupt ( - IN EFI_TIMER_ARCH_PROTOCOL *This - ) -{ - EFI_STATUS Status; - UINT16 IRQMask; - EFI_TPL OriginalTPL; - - // - // If the timer interrupt is enabled, then the registered handler will be invoked. - // - Status = mLegacy8259->GetMask (mLegacy8259, NULL, NULL, &IRQMask, NULL); - ASSERT_EFI_ERROR (Status); - if ((IRQMask & 0x1) == 0) { - // - // Invoke the registered handler - // - OriginalTPL = gBS->RaiseTPL (TPL_HIGH_LEVEL); - - if (mTimerNotifyFunction != NULL) { - // - // @bug : This does not handle missed timer interrupts - // - mTimerNotifyFunction (mTimerPeriod); - } - - gBS->RestoreTPL (OriginalTPL); - } else { - return EFI_UNSUPPORTED; - } - - return EFI_SUCCESS; -} - -/** - Initialize the Timer Architectural Protocol driver - - @param ImageHandle ImageHandle of the loaded driver - @param SystemTable Pointer to the System Table - - @retval EFI_SUCCESS Timer Architectural Protocol created - @retval EFI_OUT_OF_RESOURCES Not enough resources available to initialize driver. - @retval EFI_DEVICE_ERROR A device error occurred attempting to initialize the driver. - -**/ -EFI_STATUS -EFIAPI -TimerDriverInitialize ( - IN EFI_HANDLE ImageHandle, - IN EFI_SYSTEM_TABLE *SystemTable - ) -{ - EFI_STATUS Status; - UINT32 TimerVector; - - // - // Initialize the pointer to our notify function. - // - mTimerNotifyFunction = NULL; - - // - // Make sure the Timer Architectural Protocol is not already installed in the system - // - ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gEfiTimerArchProtocolGuid); - - // - // Find the CPU architectural protocol. - // - Status = gBS->LocateProtocol (&gEfiCpuArchProtocolGuid, NULL, (VOID **)&mCpu); - ASSERT_EFI_ERROR (Status); - - // - // Find the Legacy8259 protocol. - // - Status = gBS->LocateProtocol (&gEfiLegacy8259ProtocolGuid, NULL, (VOID **)&mLegacy8259); - ASSERT_EFI_ERROR (Status); - - // - // Force the timer to be disabled - // - Status = TimerDriverSetTimerPeriod (&mTimer, 0); - ASSERT_EFI_ERROR (Status); - - // - // Get the interrupt vector number corresponding to IRQ0 from the 8259 driver - // - TimerVector = 0; - Status = mLegacy8259->GetVector (mLegacy8259, Efi8259Irq0, (UINT8 *)&TimerVector); - ASSERT_EFI_ERROR (Status); - - // - // Install interrupt handler for 8254 Timer #0 (ISA IRQ0) - // - Status = mCpu->RegisterInterruptHandler (mCpu, TimerVector, TimerInterruptHandler); - ASSERT_EFI_ERROR (Status); - - // - // Force the timer to be enabled at its default period - // - Status = TimerDriverSetTimerPeriod (&mTimer, DEFAULT_TIMER_TICK_DURATION); - ASSERT_EFI_ERROR (Status); - - // - // Install the Timer Architectural Protocol onto a new handle - // - Status = gBS->InstallMultipleProtocolInterfaces ( - &mTimerHandle, - &gEfiTimerArchProtocolGuid, - &mTimer, - NULL - ); - ASSERT_EFI_ERROR (Status); - - return Status; -} -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. 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